Questions raised over Virgin Galactic crash as it emerges plane's 'feathering device' activated early.
The co-pilot was killed in the crash while the pilot was severely injured.
Researchers suggest dark energy is annihilating universe-building dark matter in interactions.
Biographer says project has been plagued by difficulties and walkouts by engineers.
Chinese orbiter becomes the first spacecraft in almost 40 years to make return journey to the Moon.
Using giant clusters as lens to see beyond Hubble telescope, astronomers have detected remnants of stars ripped out in galactic violence billions of years ago.
Hubble Telescope captures shadow of Ganymede over Jupiter's Great Red Spot.
A secondary gamma ray signal from the core of the Milky Way seems to fit the theory of dark matter collisions in the region.
High resolution images of the initial stages of a thermonuclear explosion on a white dwarf have shown that the process is complicated.
European Space Agency's Rosetta space probe discovers potent mix of methane, sulphur and ammonia on Comet 67P/C-G.
Huzlers website started rumours saying that there will be three days of darkness in December.
Research in rats finds microgravity environment causes damage to sperm.
Study of two craters and debris proves they were caused by rare double asteroid impact.
A partial solar eclipse will be visible over much of the United States and Canada on 23 October
A partial solar eclipse will be visible in the United States and Canada on 23 October.
In a new book, Hadfield chooses the best photos he took on the International Space Station.
Images of long-period comet from Oort cloud show it to be less than a kilometre wide.
This is one of the best years for the meteor shower from Halley's Comet as there is almost no moon
The petroglyphs engraved in the rock on Mars are similar to those found on Earth
The mountain sized comet has whizzed past the Red Planet Sunday night without causing major damage.
By measuring the wobbling of Saturn's moon Mimas, astronomers infer the existence of an ocean beneath its crust.
Ancient mile-wide comet will pass within 88,000 miles of Mars later today.
Slooh Community Observatory will show Comet C/2013 A1 fly 83,000 miles past Mars on October 19
Important film rolls from Nasa's Nimbus 1 satellite have been discovered after 50 years.
A signal from an otherwise unchanged x-ray background is predicted to belong to a dark matter candidate.
NASA studies psychology of long-term missions through longest Mars simulation.
By testing their improvised Doppler method on Venus, a scientist duo hopes to detect distant Earth-like planets.
The Maven spacecraft orbiting Mars has sent images of oxygen, hydrogen and carbon coronas from the planet's upper atmosphere.
Lunar volcanic activity is not as old as previously believed and could be a more recent one, says a new study.
Using data from Hubble space telescope team of astronomers maps extreme climate of distant exoplanet.