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Shuttle Movies
The most complete source of video from the countdown, launch and mission of space shuttle Discovery is available here! Spaceflight Now'sSTS-121 archive includes more than 200 movies you can watch online or download to your computer. Video Collection
Titan's interior revealed
By precisely tracking Cassini's motion during its closest passes of Saturn's moon Titan, scientists have been given an insight into the large moon's internal structure, finding it to be a disorganised mix of rock and ice.
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Explosive outflows halt star formation in distant galaxy
Tumultuous events in a galaxy far, far away are signalling the end of star formation within it, indicating how and why the most massive galaxies in the Universe ceased growing a few billion years after the big bang.
The motion of distant galaxy clusters streaming at a million miles per hour along a path centred on the southern constellations Centaurus and Hydra has been tracked to twice the distance originally recorded.
Thousands of stars comprising Spitzer's Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSE) have been used to listen for the 'heartbeat' of the Milky Way in terms of the rate at which our Galaxy is producing new stars.
Dried-up river channels on Mars are some of the best evidence that water once flowed on the surface of the red planet, but new analysis of a channel once thought to have been carved by water shows that it was in fact formed from lava.
Utilising the resolving power of the ten-metre Keck telescope in Hawaii, astronomers from the University of Warwick and Radboud University in the Netherlands have confirmed the existence of a double white dwarf system where the two stars orbit one another every 5.4 minutes.
Significant volumes of buried ice have been discovered in the mid-latitudes of Mars’ northern hemisphere, according to a report presented at the 41st Lunar and Planetary Science Conference earlier this week.
Galaxies are often found in groups, interacting with their neighbours, but a recent Hubble Space Telescope image reveals that some galaxies are loners, gobbling up other galaxies that lie in their path.
A howling gale of radiation blowing from a black hole in the spiral galaxy M77 is impacting on star formation despite the black hole’s ‘moderate’ size, according to observations from the Chandra X-ray Observatory.
A newly discovered star that may have been among the second generation of stars to form after the big bang may be the missing link in models of our Galaxy's evolution.
An omnipresent fog of high energy gamma-ray radiation that bathes the entire Universe is being produced mostly by a mysterious, unknown source, revealed scientists this week at a meeting of the American Astronomical Society’s High-Energy Astrophysics Division.
Scientists at the Tokai-to-Kamioka (T2K) experiment in Japan have tracked the experiment's first neutrino, a small step towards finding out why we live in a matter-dominated Universe.
Radar data analysed from India’s Chandrayaan-1 spacecraft reveals ice deposits in craters dotted around the Moon’s north pole that could contain as much as 600 million tons of ice.
The European Space Agency’s (ESA) Mars Express is set to perform its closest flyby of Phobos tonight. ESA hopes that the data collected by the spacecraft will help solve the origin of Mars’ largest moon.
Galaxy magnifiers measure age and size of Universe
Using galaxies as giant magnifying lenses, researchers have measured the size and age of the Universe, giving strength to the gravitational lensing technique as one that can provide reliable data on the parameters of the Universe.
A gas-giant planet orbiting a star in the Auriga constellation is slowly having its atmosphere stripped off and siphoned onto the surface of its host star.
We all struggle with long northern winters here on Earth, but enduring the harsh northern Martian winter may have proved too much for NASA’s Phoenix Mars Lander.
The first images delivered by the European Space Agency’s (ESA) Soil Moisture and Ocean Salinity (SMOS) mission show global variations in Earth's soil moisture and ocean salinity.
Internet users are being asked to help scientists analyse solar storm data from America’s space agency NASA as part of "Solar Stormwatch", a new initiative that was launched last week.
Scientists have long believed that the Hotei Regio area on Saturn's murky moon Titan shows signs of ancient cryovolcanism, but have debated over whether there is sufficient evidence to show there is any current activity. Now, data from two sets of instruments onboard NASA’s Cassini spacecraft have been combined to reveal the latest findings.
Stardust, the first unmanned spacecraft to return comet samples to Earth, has been successfully aligned for its second and possibly final mission: to deal with NASA’s unfinished business at comet Tempel 1.
Weekly guide to the night sky
What's up this week? Our weekly guide to the night sky will point you to all the planetary goings on, as well as pick out some deep sky objects for your viewing pleasure. WHAT'S UP THIS WEEK?
Hubble Reborn Hubble Reborn takes the reader on a journey through the Universe with spectacular full-colour pictures of galaxies, nebulae, planets and stars as seen through Hubble's eyes, along the way telling the dramatic story of the space telescope, including interviews with key scientists and astronauts. U.K. STORE E.U. STORE U.S. & WORLDWIDE STORE
2010 Yearbook Our latest 132-page Astronomy Now special edition is an extravaganza of astronomy for the year ahead, with a complete 30-page guide to observing the planets, moon, meteor showers, two solar eclipses, and the deep sky in 2010. U.K. STORE E.U. STORE U.S. & WORLDWIDE STORE
3D Universe Witness the most awesome sights of the Universe as they were meant to be seen in this 100-page extravaganza of planets, galaxies and star-scapes, all in 3D! U.K. STORE E.U. STORE U.S. & WORLDWIDE STORE
Video Extras Colliding galaxies WATCH Watch the Geminids WATCH Phobos and Deimos caught on camera WATCH Powers of Ten WATCH Ice found in new Martian craters WATCH The shadows of Saturn's equinox
WATCH Re-aluminizing the Palomar 200" mirror
WATCH ARCHIVE
Infinity Rising This special publication features the photography of British astro-imager Nik Szymanek and covers a range of photographic methods from basic to advanced. Beautiful pictures of the night sky can be obtained with a simple camera and tripod before tackling more difficult projects, such as guided astrophotography through the telescope and CCD imaging. U.K. STORE E.U. STORE U.S. & WORLDWIDE STORE Exploring Mars Astronomy Now is pleased to announce the publication of Exploring Mars. The very best images of Mars taken by orbiting spacecraft and NASA's Spirit and Opportunity rovers fill up the 98 glossy pages of this special edition! U.K. STORE E.U. STORE U.S. & WORLDWIDE STORE
WHAT'S UP THIS WEEK?
This special publication features the photography of British astro-imager Nik Szymanek and covers a range of photographic methods from basic to advanced. Beautiful pictures of the night sky can be obtained with a simple camera and tripod before tackling more difficult projects, such as guided astrophotography through the telescope and CCD imaging.
U.K. STORE
Astronomy Now is pleased to announce the publication of Exploring Mars. The very best images of Mars taken by orbiting spacecraft and NASA's Spirit and Opportunity rovers fill up the 98 glossy pages of this special edition!
Hubble Reborn takes the reader on a journey through the Universe with spectacular full-colour pictures of galaxies, nebulae, planets and stars as seen through Hubble's eyes, along the way telling the dramatic story of the space telescope, including interviews with key scientists and astronauts. 
Our latest 132-page Astronomy Now special edition is an extravaganza of astronomy for the year ahead, with a complete 30-page guide to observing the planets, moon, meteor showers, two solar eclipses, and the deep sky in 2010.
Witness the most awesome sights of the Universe as they were meant to be seen in this 100-page extravaganza of planets, galaxies and star-scapes, all in 3D! 
