BBC Horizon - Is Everything We Know About The Universe Wrong?
There's something very odd going on in space -- something that shouldn't be possible. It is as though vast swathes of the universe are being hoovered up by a vast and unseen celestial vacuum cleaner.
The accidental discovery of what is ominously being called 'dark flow' not only has implications for the destinies of large numbers of galaxies -- it also means that large numbers of scientists might have to find a new way of understanding the universe.
Dark flow is the latest in a long line of phenomena that have threatened to rewrite the textbooks. Does it herald a new era of understanding, or does it simply mean that everything we know about the universe is wrong?
Sasha Kaslinsky a senior staff scientist at NASA's Goddard Space Flight Center in Greenbelt, Maryland, has
been studying how rebellious clusters of galaxies move against the backdrop of expanding space.
They are the biggest questions that science can possibly ask: where did everything in our universe come from? How did it all begin? For nearly a hundred years, we thought we had the answer: a big bang some 14 billion years ago.
But now some scientists believe that was not really the beginning. Our universe may have had a life before this violent moment of creation.
Horizon takes the ultimate trip into the unknown, to explore a dizzying world of cosmic bounces, rips and multiple universes, and finds out what happened before the big bang.
Professor Jim Al Khalili, (University of Surrey), delves into over 50 years of the BBC science archive to tell the story behind the emergence of one of the greatest theories of modern science, the Big Bang.
The remarkable idea that our universe simply began from nothing has not always been accepted with the conviction it is today and, from fiercely disputed leftfield beginnings, took the best part of the 20th century to emerge as the triumphant explanation of how the universe began.
Using curious horn-shaped antennas, U-2 spy planes, satellites and particle accelerators, scientists have slowly pieced together the cosmological jigsaw, and this documentary charts the overwhelming evidence for a universe created by a Big Bang.
Wed, 13 Jun 2012 12:00:00 EDT - NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) is carried into space aboard a Pegasus rocket launched from Kwajalein Atoll in the Marshall Islands.
Tue, 05 Jun 2012 12:00:00 EDT - The NuSTAR mission is launching a telescope designed to find high-energy X-rays that will reveal previously invisible structures in the universe.
Fri, 16 Mar 2012 12:00:00 EDT - NASA's newest X-ray telescope will have a lengthy structure that unfolds in space, allowing it to see high-energy objects like feeding black holes.
Tue, 19 Apr 2011 12:00:00 EDT - Kennedy Space Center is propelled today by the same strengths that have made it the nation's most celebrated launch complex for nearly 50 years.
Thu, 02 Dec 2010 12:00:00 EST - The NASA Goddard Space Flight Center has a team of scientists testing micro and nanotechnology to use on spacecraft. The goal is to reduce the reflection off the surface of the instruments so that the data does not get polluted by the scattered light. The carbon nanotubes that the team grows have proven to be 10 times better than the NASA Z306 paint, currently used on spacecraft instruments.
Fri, 23 Jul 2010 12:00:00 EDT - What do you do if you have a sample from another planet, and you want to find out if it contains a certain molecule...maybe even one that will reveal that the planet can sustain life? When scientists face a situation like this, they employ an amazing tool: the mass spectrometer. It does the hard work of separating out materials, allowing scientists to look very closely at a sample and see what's inside.
NASACast: Universe Audio
Audio podcasts on NASA's missions exploring the universe
Wed, 14 Oct 2009 12:00:00 EDT - WISE mission's project scientist, Amy Mainzer of JPL, discusses how the mission will achieve its goals and what scientists hope to learn from the discoveries.
Tue, 30 Jun 2009 12:00:00 EDT - Today we have three Kepler project team members who are here to discuss the unique attributes of the Kepler Space Telescope.
Thu, 16 Apr 2009 12:00:00 EDT - Today we have three Kepler project team members who are here to discuss the kinds of planets that Kepler will be looking to find.
Sat, 21 Mar 2009 12:00:00 EDT - Planned for launch in March of 2009, the Kepler space telescope will observe one area of the universe continuously for a period of four years.
Fri, 06 Mar 2009 12:00:00 EST - Planned for launch in March of 2009, the Kepler space telescope will observe one area of the universe continuously for a period of four years.
Fri, 27 Feb 2009 12:00:00 EST - Planned for launch in March of 2009, the Kepler space telescope will observe one area of the universe continuously for a period of four years.
For the last 12 years, Carter Emmart has been
coordinating the efforts of scientists, artists and programmers to build a complete 3D visualization of our known universe. He demos this
stunning tour and explains how it's being shared with facilities around the world.
Hayden Planetarium operates out of the Department of Astrophysics at the American Museum of Natural History. Our mission is to bring the frontier of
astrophysics to the public via exhibitry, books, public programs, and on-line resources. What is the Digital Universe?
The Digital Universe, developed by the American Museum of Natural History's Hayden Planetarium with support from NASA, incorporates data
from dozens of organizations worldwide to create the most complete and accurate 3D atlas of the Universe from the local solar neighborhood out
to the edge of the observable Universe. In preparation for the reopening of the Hayden Planetarium in 2000, the American Museum of Natural History embarked on the creation of a 3D
astronomical atlas to provide a framework for teaching about the discoveries of modern astrophysics. While the Rose Center for Earth and
Space was constructed outside the Museum, a digital model of the Universe was constructed inside. The atlas grew out of a convergence of
two great streams of technical achievement: celestial mapmaking, which incorporates centuries of observation and scientific breakthroughs,
combined with hardware and software engineering, which enables sophisticated data visualization. As new data are gathered, and new
tools developed, the Digital Universe will continue to expand, filling in more details of our Universe as our understanding evolves. American Museum of Natural History
Uniview Website. Scaling the Universe, the official home for the Uniview
realtime visualization platform. Sciss AB provides software visualization platform designed to provide planetaria with the means to
show science and astronomy. Its ScaleGraph enables scaling of the universe from a grain of rice to the edge of the observable universe.
The company also offers FlightAssist, a navigation model in UniView, which provides motion and composed imagery regardless of how UniView is
piloted; and Halo Surfaces, used to represent planets, to add support for planetary surfaces of arbitrary resolution. Sciss AB was founded in
2004 and is based in Norrkoping, Sweden
Planck captures 'embers' of Big Bang. The
picture "is an extraordinary treasure chest of new data for
astronomers," according to a press release from the European Space Agency
(ESA).
ESA Planck's Telescope is designed to look at radiation in the
microwave part of the energy spectrum.
Microwave signatures point to the birth and
death of stars and galaxies, as well as the embers of the Big Bang
which, according to theory, brought the Universe into existence 13.7
billion years ago.
This primeval energy, known as cosmic microwave
background radiation (CMBR), washes across the sky.
Named after the 20th-century German physicist
Max
Planck who founded quantum theory, the mission is equipped with a
1.5-metre telescope that focuses radiation onto two arrays of microwave
detectors, each cooled to almost absolute zero.
A look inside the EBEX project, an experiment designed to detect a faint signal generated just after the birth of the universe.
If successful, this signal could be a huge step toward achieving the "holy grail" of physics: a grand unified theory.
EBEX a balloon-borne polarimeter designed to measure the intensity and polarization of the cosmic microwave background radiation.
Measurements of the polarization of the CMB could probe an inflationary epoch that took place shortly after the big bang and significantly improve constraints on the values of several cosmological parameters.
DARK ENERGY in Full HD 1080p. Cosmology, the study of the universe as a whole, has been turned on its head by a stunning discovery that the universe is flying apart in all directions at an ever-increasing rate.
Is the universe bursting at the seams? Or is nature somehow fooling us?
The astronomers whose data revealed this accelerating universe have been awarded the Nobel Prize for Physics.
Cosmic Journeys Cutting-edge stories about the origins of the universe, black holes, exploding stars, the search for ET life, time and space, the solar system. Original productions from SpaceRip YouTube Channel.
NASA's Goddard Space Flight Center is home to the nation's largest organization of combined scientists, engineers and technologists that build spacecraft, instruments and new technology to study the Earth, the sun, our solar system, and the universe :-
News Feature
An RSS feed containing the latest news features from NASA Goddard
NASA's Operation IceBridge hosted three science teachers during their recent Arctic field campaign, giving these educators a first-hand polar science experience that they could use to teach and inspire their students.
In Antarctica in January, 2013 scientists released 20 balloons, to study the giant radiation belts surrounding Earth and how they lose particles, causing electrons from the belts to stream down toward the poles.
NASA is getting ready to launch a new mission to observe a mysterious region of the solar atmosphere that may be crucial to understanding what powers space weather.
A NASA team built a first-of-a-kind testbed to simulate the distinctive signature of pulsars - which radiate in regular bursts anywhere from seconds to milliseconds.
Scientists seek to gain answers to questions about the formation of stars and galaxies with the launch of the CIBER sounding rocket on June 4 from Wallops.
On 5:24 a.m. EDT on May 17, 2013, the sun erupted with an Earth-directed coronal mass ejection or CME, a solar phenomenon that can send billions of tons of solar particles into space.
99% of all of Earth’s land ice is locked into the Greenland and Antarctic ice sheets. But from 2003 to 2009, the world’s other glaciers contributed just as much to sea level rise as the two ice sheets combined.
A team of scientists has won a berth on a tiny satellite to explore one of NASA's last frontiers in climate studies: the imbalance in Earth's energy budget.
Scientists using images from NASA's Mars Reconnaissance Orbiter have estimated that the planet is bombarded by more than 200 small asteroids or bits of comets per year forming craters at least 12.8 feet (3.9 meters) across.
Several large experimental groups are hot on the trail of this elusive subatomic particle which is thought to explain the origins of particle mass
Fermilab, Virtual Tour of Fermlab The next best thing to visiting. Fermilab in person. Fermilab carry out research in high-energy physics to answer the questions: What is the universe made of? How does it work? Where did it come from? Research at Fermilab has led to scientific discoveries and technological advances.
CERN, the European Organization for Nuclear Research, is one of the world’s largest and most respected centres for scientific research. Its business is fundamental physics, finding out what the Universe is made of and how it works. At CERN, the world’s largest and most complex scientific instruments are used to study the basic constituents of matter — the fundamental particles. By studying what happens when these particles collide, physicists learn about the laws of Nature.
The instruments used at CERN are particle accelerators and detectors. Accelerators boost beams of particles to high energies before they are made to collide with each other or with stationary targets. Detectors observe and record the results of these collisions.
Founded in 1954, the CERN Laboratory sits astride the Franco–Swiss border near Geneva. It was one of Europe’s first joint ventures and now has 20 Member States.
Explores, (in high-res 1080p), one of the deepest mysteries about the origin of our universe. According to standard theory, the early moments of the universe were marked by the explosive contact between subatomic particles of opposite charge. Featuring short interviews with Masaki Hori, Tokyo University and Jeffrey Hangst, Aarhus University.
Scientists are now focusing their most powerful technologies on an effort to figure out exactly what happened. Our understanding of cosmic history hangs on the question: how did matter as we know it survive? And what happened to its birth twin, its opposite, a mysterious substance known as antimatter?
A crew of astronauts is making its way to a launch pad at the Kennedy Space Center in Florida. Little noticed in the publicity surrounding the close of this storied program is the cargo bolted into Endeavor's hold. It's a science instrument that some hope will become one of the most important scientific contributions of human space flight.
It's a kind of telescope, though it will not return dazzling images of cosmic realms long hidden from view, the distant corners of the universe, or the hidden structure of black holes and exploding stars.
Unlike the great observatories that were launched aboard the shuttle, it was not named for a famous astronomer, like Hubble, or the Chandra X-ray observatory.
The instrument, called the Alpha Magnetic Spectrometer, or AMS. The promise surrounding this device is that it will enable scientists to look at the universe in a completely new way.
Most telescopes are designed to capture photons, so-called neutral particles reflected or emitted by objects such as stars or galaxies. AMS will capture something different: exotic particles and atoms that are endowed with an electrical charge. The instrument is tuned to capture "cosmic rays" at high energy hurled out by supernova explosions or the turbulent regions surrounding black holes. And there are high hopes that it will capture particles of antimatter from a very early time that remains shrouded in mystery.
The chain of events that gave rise to the universe is described by what's known as the Standard model. It's a theory in the scientific sense, in that it combines a body of observations, experimental evidence, and mathematical models into a consistent overall picture. But this picture is not necessarily complete.
The universe began hot. After about a billionth of a second, it had cooled down enough for fundamental particles to emerge in pairs of opposite charge, known as quarks and antiquarks. After that came leptons and antileptons, such as electrons and positrons. These pairs began annihilating each other.
Most quark pairs were gone by the time the universe was a second old, with most leptons gone a few seconds later. When the dust settled, so to speak, a tiny amount of matter, about one particle in a billion, managed to survive the mass annihilation.
That tiny amount went on to form the universe we can know - all the light emitting gas, dust, stars, galaxies, and planets. To be sure, antimatter does exist in our universe today. The Fermi Gamma Ray Space Telescope spotted a giant plume of antimatter extending out from the center of our galaxy, most likely created by the acceleration of particles around a supermassive black hole.
The same telescope picked up signs of antimatter created by lightning strikes in giant thunderstorms in Earth's atmosphere. Scientists have long known how to create antimatter artificially in physics labs - in the superhot environments created by crashing atoms together at nearly the speed of light.
Here is one of the biggest and most enduring mysteries in science: why do we live in a matter-dominated universe? What process caused matter to survive and antimatter to all but disappear? One possibility: that large amounts of antimatter have survived down the eons alongside matter.
In 1928, a young physicist, Paul Dirac, wrote equations that predicted the existence of antimatter. Dirac showed that every type of particle has a twin, exactly identical but of opposite charge. As Dirac saw it, the electron and the positron are mirror images of each other. With all the same properties, they would behave in exactly the same way whether in realms of matter or antimatter. It became clear, though, that ours is a matter universe. The Apollo astronauts went to the moon and back, never once getting annihilated. Solar cosmic rays proved to be matter, not antimatter.
It stands to reason that when the universe was more tightly packed, that it would have experienced an "annihilation catastrophe" that cleared the universe of large chunks of the stuff. Unless antimatter somehow became separated from its twin at birth and exists beyond our field of view, scientists are left to wonder: why do we live in a matter-dominated universe?
CosmotographyCCD Imagery of the Heavens. Presenting images of interesting astronomical subjects obtained with modest, commercially available telescopes and CCD cameras that are optimized for taking long exposures of low light-level subjects. Separate black and white exposures through clear, red, green and blue filters are digitally combined and stretched, using Adobe Photoshop and other image processing software, to create full color pictures.
Earlier images, near the page bottom, were exposed from suburban, San Jose, California location through moderately high light pollution with a 12-inch Dall-Kirkham cassegrain telescope.
Most images were produced through the remotely controlled RCOS 20-inch (Ritchey-Chretien) telescope at the Blackbird Observatory in the south central mountains of New Mexico. Some southern hemisphere images were also acquired from a remotely operated observatory located near
Melbourne, Australia with a 12-inch RCOS telescope. A few pictures, noted as NOAO, were acquired with the 20-inch Ritchey-Chretien telescope at the National Optical Astronomy Observatory Visitor’s Center on Kitt Peak, Arizona.
What's six miles wide and can end civilization in an instant? An asteroid - and there are lots of them out there. With humor and great visuals, Phil Plait enthralls the TEDxBoulder audience with all the ways asteroids can kill, and what we must do to avoid them.
TEDTalks, (Technology, Entertainment, Design). A daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change,
Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the "Sixth Sense" wearable tech, and "Lost" producer JJ Abrams on the allure of mystery.
TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED Translate.
Acclaimed physicist Brian Greene reveals a mind-boggling reality beneath the surface of our everyday world.
Physicist Brian Greene, host of the acclaimed series The Elegant Universe,
returns with The Fabric of the Cosmos--a mind-blowing new exploration of space, time, and the very nature of reality.
Discover how our perceptions have fooled us and time may be an illusion; why empty space is not empty; how a hidden realm, where the seemingly impossible is possible, lies just beneath the surface of the everyday world; and why other universes--even copies of you--may exist.
PBS and our member stations are America’s largest classroom, the nation’s largest stage for the arts and a trusted window to the world. In addition,
PBS's educational media helps prepare children for success in school and opens up the world to them in an age-appropriate way.
The Illusion of Time - We waste it, spend it, make it, and kill it, but what really is time? Is it like a river that flows, a clock that ticks, or nothing more than an illusion? Join a time-traveling adventure to uncover the true nature of past, present, and future--and of time itself.
What Is Space-- - You can't see it, touch it, or taste it, but space is everywhere. And it's not just an empty void. Surprising clues that space is "something" rather than "nothing" are overturning much of what we thought we knew about the universe, and may even hold the key to its ultimate fate.
Quantum Leap - Take a wild ride into a bizarre realm where it seems the impossible is possible. Objects pop in and out of existence; things can, in a sense, be in two places at once; even teleportation is real. Welcome to the weird world of quantum mechanics. On the scale of atoms and particles, the universe is nothing like it seems.
Universe or Multiverse-- - Is our universe unique, or could it be just one of many in an endless "multiverse" where copies of you, me, and everyone else may exist? This radical idea is getting some serious scientific attention, and could revolutionize our picture of the cosmos--and our place within it.
This DVD features Descriptive Video for the Visually Impaired.
This DVD features subtitles in English (SDH).
Over a million observations of the Universe have been made by the Hubble Space Telescope.
Space Telescope is asking the public to sift through the archives, adjust the colors of their favorite photos with an online tool.
Any mentioned competition to win prices may be out of date by the time you watch this video.
Space Telescope The Hubble Space Telescope is a project of international co-operation between NASA and the European Space Agency. You can find out more about the Hubble project in the About Hubble pages of this website. The main scientific office for Hubble is located at the Space Telescope Science Institute in Baltimore, USA, though the telescope is used by scientists around the world. Space Telescope is asking the public to sift through the archives, adjust the colors of their favorite photos with an online tool. The education and public outreach office for ESA’s share of the Hubble Space Telescope (known as ESA/Hubble), which runs the spacetelescope.org website, is located at the headquarters of the European Southern Observatory in Garching, Germany. On these pages, you can find out more about our team and what Space Telescope do:-
Hubblecast HD
The latest news about astronomy, space and the NASA/ESA Hubble Space Telescope presented in High Definition is only for devices that play High Definition video (not iPhone or iPod). To watch the Hubblecast on your iPod and/or iPhone, please download the Standard Definition version also available on iTunes.
Thu, 23 May 2013 16:00:00 +0200 - Episode 66 of the Hubblecast explores the Ring Nebula (Messier 57). Although this nebula is one of the most famous objects in our skies, more than 200 years after its discovery astronomers are still unveiling some of its secrets.
Fri, 19 Apr 2013 15:00:00 +0200 - This episode of the Hubblecast celebrates 23 years of the NASA/ESA Hubble Space Telescope, by unveiling a beautiful and striking new image of the Horsehead nebula.
Wed, 03 Apr 2013 12:00:00 +0200 - Most stars in the Universe are small and insignificant, and they will -- eventually -- fizzle out without much drama. But a few light up the sky when they die, and in the process, they don’t just tell us about the lives of stars: they create the building blocks of life, and help us to unravel the whole history of the Universe. These are the stars that end their lives as supernovae, explosions that are among the most violent events in the Universe.
Wed, 06 Mar 2013 15:00:00 +0100 - This episode of the Hubblecast explores how conceptual artist Tim Otto Roth has been inspired by scientific data from the NASA/ESA Hubble Space Telescope to create a unique work of art.
Tue, 05 Feb 2013 16:00:00 +0100 - Despite its appearance, which looks much like countless other galaxies, Messier 106 hides a number of secrets. In this episode of the Hubblecast, Dr Joe Liske (aka Dr J) takes us on a tour of the galaxy. Thanks to a new image, which combines data from Hubble with observations by amateur astronomer Robert Gendler, the galaxy’s secrets are revealed as never before.
Tue, 18 Dec 2012 15:00:00 +0100 - In this episode of the Hubblecast, Dr Joe Liske (aka Dr J) invites us to tour NGC 5189, a planetary nebula in our galaxy. The nebula looks like a ribbon in space, with a complex structure that comes from the dying throes of a Sun-like star at its centre.
Thu, 06 Dec 2012 15:00:00 +0100 - Episode 60 of the Hubblecast explores NGC 922, a galaxy that has been hit square-on by another. Ripples of star-formation are still propagating out across thousands of light-years of space over 300 million years after the collision, making it a prime example of what astronomers call a collisional ring galaxy.
Thu, 23 Aug 2012 12:00:00 +0200 - In this episode of the Hubblecast, Joe Liske (aka Dr J) presents the winners of the Hidden Treasures image processing competition.
Thu, 31 May 2012 19:00:00 +0200 - In this episode of the Hubblecast, scientists Jay Anderson and Roeland van der Marel show how they have used Hubble observations to predict the future of the Andromeda Galaxy and the Milky Way.
Tue, 17 Apr 2012 15:00:00 +0200 - To celebrate the 22nd anniversary of the NASA/ESA Hubble Space Telescope this month, episode 54 of the Hubblecast gives a slideshow of some of the best images from over two decades in orbit, set to specially commissioned music.
Tue, 27 Mar 2012 17:10:01 +0200 - Over two decades in orbit, the Hubble Space Telescope has made a huge number of observations. Every week, we publish new ones on the Hubble website. But hidden in Hubble’s huge data archives are some truly breathtaking images that have hardly ever been seen by anyone.
Thu, 15 Dec 2011 15:00:00 +0100 - In this episode of the Hubblecast, we take a tour of the compact star-forming region Sh 2-106. Its hourglass shape is caused by the final, violent phases of a star’s formation in the middle of the gaseous nebula. This episode explains some of the science behind Hubble’s observations and brings them to life with detailed 3D computer visualisations.
Tue, 25 Oct 2011 15:00:00 +0200 - In episode 49 of the Hubblecast, Dr Joe Liske (aka Dr J) asked viewers to send in their questions about astronomy and the NASA/ESA Hubble Space Telescope. In episode 50, Dr J picks his favourite few questions from the hundreds that were sent in.
Wed, 31 Aug 2011 15:00:00 +0200 - In this episode of the Hubblecast, Joe Liske (aka Dr J) looks at newborn stars firing out jets of matter. These jets may cast new light on how the Sun formed 4.5 billion years ago.
Thu, 21 Jul 2011 10:00:00 +0200 - In this episode of the Hubblecast, Joe Liske, aka Dr J, takes us on a tour of the outer reaches of the Andromeda Galaxy, the closest spiral galaxy to our Milky Way.
Wed, 22 Jun 2011 15:00:00 +0200 - This joint episode of the Hubblecast and ESOcast presents Abell 2744, an unusual cluster of galaxies nicknamed "Pandora's Cluster" by the astronomers who have studied it. Looking at the galaxies, gas and dark matter in the cluster, scientists have reconstructed the series of huge collisions that created it, and have uncovered some strange phenomena never seen together before.
Thu, 16 Jun 2011 15:00:00 +0200 - The Hubblecast's Dr J, aka Joe Liske, takes us on a tour of Centaurus A, a bright and dusty galaxy in the Southern sky. Hubble’s observations are the most detailed ever made of this galaxy.
Thu, 21 Apr 2011 16:00:00 +0200 - The NASA/ESA Hubble Space Telescope is working on three of the most ambitious projects in its history just now. These multicycle treasury programs are using Hubble's unique ability to observe across the spectrum from ultraviolet, through visible, to infrared light, to build up a library of data which will serve astronomers for many years. In this podcast episode, presenter Dr J (aka Joe Liske) looks at these projects, and how they will complement the capabilities of the next great thing in space-based astronomy, the James Webb Space Telescope.
Tue, 15 Mar 2011 10:00:00 +0100 - The Hubblecast's Joe Liske (Dr J) takes us on a tour of the Tarantula Nebula. Bright star forming gas clouds, super star clusters and supernova remnants are just some of the sights in this dramatic region of the night sky.
Mon, 28 Feb 2011 16:00:00 +0100 - For centuries, scientists imagined objects so heavy and dense that their gravity might be strong enough to pull anything in - including light. They would be, quite literally, a black hole in space.
Thu, 27 Jan 2011 14:15:00 +0100 - What makes a scientific discovery really important? It's partly down to how much scientists use the discovery in subsequent work -- but it’s also partly down to what inspires their imagination. In this episode, the Hubblecast talks to some leading astronomers about their favourite Hubble discovery. Meanwhile, our presenter, Dr J, struggles to make up his mind.
Deep Sky Videos. Videos and information of Deep Space, Galaxy's, Stars, The Universe and links to Star Watchers, Deep Space Research, etc...
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Episode 66 of the Hubblecast explores the Ring Nebula (Messier 57). Although this nebula is one of the most famous objects in our skies, more than 200 years after its discovery astronomers are still unveiling some of its secrets.
This episode of the Hubblecast celebrates 23 years of the NASA/ESA Hubble Space Telescope, by unveiling a beautiful and striking new image of the Horsehead nebula.
Most stars in the Universe are small and insignificant, and they will -- eventually -- fizzle out without much drama. But a few light up the sky when they die, and in the process, they don’t just tell us about the lives of stars: they create the building blocks of life, and help us to unravel the whole history of the Universe. These are the stars that end their lives as supernovae, explosions that are among the most violent events in the Universe.
This episode of the Hubblecast explores how conceptual artist Tim Otto Roth has been inspired by scientific data from the NASA/ESA Hubble Space Telescope to create a unique work of art.
Despite its appearance, which looks much like countless other galaxies, Messier 106 hides a number of secrets. In this episode of the Hubblecast, Dr Joe Liske (aka Dr J) takes us on a tour of the galaxy. Thanks to a new image, which combines data from Hubble with observations by amateur astronomer Robert Gendler, the galaxy’s secrets are revealed as never before.
In this episode of the Hubblecast, Dr Joe Liske (aka Dr J) invites us to tour NGC 5189, a planetary nebula in our galaxy. The nebula looks like a ribbon in space, with a complex structure that comes from the dying throes of a Sun-like star at its centre.
Episode 60 of the Hubblecast explores NGC 922, a galaxy that has been hit square-on by another. Ripples of star-formation are still propagating out across thousands of light-years of space over 300 million years after the collision, making it a prime example of what astronomers call a collisional ring galaxy.
In this episode of the Hubblecast, Joe Liske (aka Dr J) presents the winners of the Hidden Treasures image processing competition.
In this episode of the Hubblecast, scientists Jay Anderson and Roeland van der Marel show how they have used Hubble observations to predict the future of the Andromeda Galaxy and the Milky Way.
To celebrate the 22nd anniversary of the NASA/ESA Hubble Space Telescope this month, episode 54 of the Hubblecast gives a slideshow of some of the best images from over two decades in orbit, set to specially commissioned music.
Over two decades in orbit, the Hubble Space Telescope has made a huge number of observations. Every week, we publish new ones on the Hubble website. But hidden in Hubble’s huge data archives are some truly breathtaking images that have hardly ever been seen by anyone.
In this episode of the Hubblecast, we take a tour of the compact star-forming region Sh 2-106. Its hourglass shape is caused by the final, violent phases of a star’s formation in the middle of the gaseous nebula. This episode explains some of the science behind Hubble’s observations and brings them to life with detailed 3D computer visualisations.
In episode 49 of the Hubblecast, Dr Joe Liske (aka Dr J) asked viewers to send in their questions about astronomy and the NASA/ESA Hubble Space Telescope. In episode 50, Dr J picks his favourite few questions from the hundreds that were sent in.
In this episode of the Hubblecast, Joe Liske (aka Dr J) looks at newborn stars firing out jets of matter. These jets may cast new light on how the Sun formed 4.5 billion years ago.
In this episode of the Hubblecast, Joe Liske, aka Dr J, takes us on a tour of the outer reaches of the Andromeda Galaxy, the closest spiral galaxy to our Milky Way.
This joint episode of the Hubblecast and ESOcast presents Abell 2744, an unusual cluster of galaxies nicknamed "Pandora's Cluster" by the astronomers who have studied it. Looking at the galaxies, gas and dark matter in the cluster, scientists have reconstructed the series of huge collisions that created it, and have uncovered some strange phenomena never seen together before.
The Hubblecast's Dr J, aka Joe Liske, takes us on a tour of Centaurus A, a bright and dusty galaxy in the Southern sky. Hubble’s observations are the most detailed ever made of this galaxy.
The NASA/ESA Hubble Space Telescope is working on three of the most ambitious projects in its history just now. These multicycle treasury programs are using Hubble's unique ability to observe across the spectrum from ultraviolet, through visible, to infrared light, to build up a library of data which will serve astronomers for many years. In this podcast episode, presenter Dr J (aka Joe Liske) looks at these projects, and how they will complement the capabilities of the next great thing in space-based astronomy, the James Webb Space Telescope.
The Hubblecast's Joe Liske (Dr J) takes us on a tour of the Tarantula Nebula. Bright star forming gas clouds, super star clusters and supernova remnants are just some of the sights in this dramatic region of the night sky.
For centuries, scientists imagined objects so heavy and dense that their gravity might be strong enough to pull anything in - including light. They would be, quite literally, a black hole in space.
What makes a scientific discovery really important? It's partly down to how much scientists use the discovery in subsequent work -- but it’s also partly down to what inspires their imagination. In this episode, the Hubblecast talks to some leading astronomers about their favourite Hubble discovery. Meanwhile, our presenter, Dr J, struggles to make up his mind.
