Theory suggests universe without Big Bang
A new theory has been put forward to explain the accelerating expansion of the universe, without the need for dark energy.
The new cosmology developed by Wun-Yi Shu of
Astronomers discover new threat to Earth
Astronomers have detected a half-kilometre wide asteroid that appears to be on a collision course with the Earth - in 172 years time.
Reporting in the journal
Exoplanet bonanza fuels excitement
News analysis Are we alone in the Universe? It's a question many of us have asked at some point in our lives, and for centuries the question has rema
NASA unveils 'most detailed' map of Mars
A camera aboard NASA's Mars Odyssey spacecraft has helped develop the most accurate global Martian map ever produced.
The new data provides the most highly detailed su
Saturn's ring gives birth to new moons
Scientists have captured what they believe are the first images of moons forming in the rings of Saturn.
New images taken by NASA's
Scientists find 'monster' star
Astronomers have found the largest star yet detected - up to 20 million times brighter than the Sun - using the Very Large Telescope in Chile.
Named R136a1, the star i
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