
Weird worlds: And the rest...
24 March 2010
Which is the largest moon? Which moon was nearly upgraded to planet status? Find out here

24 March 2010
Which is the largest moon? Which moon was nearly upgraded to planet status? Find out here

24 March 2010
The seemingly bleak icy surfaces of these moons are in fact among the most active landscapes in the solar system. They may even contain cosy habitats for living creatures

15 January 2010
Unlike single-star systems, those with two suns could produce more than one generation of planets

16 December 2009
Mouse urine, puréed goldfish brains and human computers. Sound interesting? Well, it's not. Honest

16 December 2009
The discovery of a planet that seems to made almost entirely of water suggests "super-Earths" are a more diverse bunch than we thought

18 November 2009
Two peculiar white dwarfs with more oxygen than carbon are like nothing anybody has seen before

14 October 2009
The songwriter celebrates everything from the solar system to evolution, the subject of a "science oratorio" to be performed later this month

22 July 2009
Let's move on from the sterile argument about the meaning of the word planet – it changes nothing and risks bringing astronomy into disrepute

22 July 2009
Poor Pluto was demoted, to the dismay of its many fans, but it could soon be returned triumphantly to full planet status

10 June 2009
Objects halfway between a planet and a star have been shown to feature weather patterns, enhancing their status as the universe's hybrids