
Why the universe may be teeming with aliens
19 November 2008
Hunting for a planet that can support life? There's more to it than looking for Earth's distant twin, says David Shiga

19 November 2008
Hunting for a planet that can support life? There's more to it than looking for Earth's distant twin, says David Shiga

5 March 2008
About a quarter of the cosmos is thought to be made of dark matter, yet no one has ever found any. In 2008, that could change

9 January 2008
Something weird is going on beyond Neptune, but Pluto is too puny to blame. Time to call in the planet hunters, says Govert Schilling

12 December 2007
If the sun's evil twin or killer asteroids are out there, ambitious digital mapping projects will nail them, says Hazel Muir

3 October 2007
A host of new techniques means we will soon know whether these weird cosmic objects are what we think they are, says Michael D Lemonick

26 September 2007
From super huge to hellishly hot, there are some crazy planets coming to light outside the familiar confines of our solar system

8 August 2007
If we care to listen, we'd discover the planets and moons of the solar system are shouting their secrets for all to hear

8 August 2007
Instead of being big game hunters, the first Americans may have conquered the New World by boat following a trail of sushi

25 July 2007
NASA physicist James Hansen explains why he thinks a sea level rise of several metres is a near certainty if greenhouse gas emissions keep increasing unchecked

13 June 2007
In an era when humanity seems to have subjugated the whole world, a surprising number of places have been left untouched