
Astrophile: Supercritical water world does somersaults
18 November 2011
The planet 55 Cancri e is the most watery world found yet, but its great ocean is a strange hybrid of liquid and gas

18 November 2011
The planet 55 Cancri e is the most watery world found yet, but its great ocean is a strange hybrid of liquid and gas

28 October 2011
If a tribe of dormant, winking stars really are on the verge of going supernova, they will help reveal dark energy's true nature

19 October 2011
Eris, the dwarf planet that got Pluto kicked out of the planet club, is actually no bigger than Pluto, new observations suggest – but it's blindingly bright

12 October 2011
A mountain in a Chilean desert boasts some of the best telescopes on Earth – but visiting them is not for faint-hearted stargazers

7 October 2011
If our galaxy was a couple of kids with sparklers, Arp 220 would be the most eye-popping fireworks display you've ever seen

21 September 2011
If we spied another living world in the distant cosmos, how would we recognise it?

15 September 2011
Reminiscent of Tatooine in Star Wars, a planet has been discovered in orbit around two stars

14 September 2011
If the dwarf planet's core has as much radioactive potassium as scientists think, it may have a subsurface ocean and the conditions to sustain life

25 August 2011
A large, dense planet has been found orbiting a pulsar – and it just might be made of solid diamond

17 August 2011
Time to ditch the black armbands and look beyond low Earth orbit again. The shuttle's passing marks the start of an exciting new era, says Daniel Fischer