
Smallest exoplanet is the size of Mars
11 January 2012
The latest record-breaking exoworld is just 57 per cent as wide as Earth – its discovery around a common type of star suggests habitable planets abound

11 January 2012
The latest record-breaking exoworld is just 57 per cent as wide as Earth – its discovery around a common type of star suggests habitable planets abound

19 January 2011
A newly confirmed planet is a scorching 3200 °C – its proximity to its host star is only partly to blame

1 December 2010
A planet 6.5 times as massive as Earth called GJ 1214b has an atmosphere dominated by steam or cloudy haze, new observations suggest

8 November 2010
Eris, a distant body that triggered the debate about what constitutes a planet, may actually be smaller than Pluto, according to new observations

13 October 2010
Two weeks after one team of astronomers announced finding the habitable planet Gliese 581 g, another team says it can find no evidence of the world in its data

29 September 2010
A rocky body about three times as massive as Earth has been found in the cosy "habitable zone" around its star – the find suggests habitable planets are common

12 April 2010
Atmospheric pollution on white dwarf stars could be a sign of destroyed watery exoplanets – suggesting that Earth-like worlds are common

9 April 2010
A dim object less than 10 light years away seems to be the closest brown dwarf yet found – the discovery suggests other dark stars may lie even closer

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

12 June 2009
The Apollo 11 astronaut joined the Boston Pops for a performance that reminds us how much our understanding of the solar system has been transformed by science