Broken dwarf planet may have scarred the moon
3 June 2009
The shattered remnants of a dwarf planet may have bombarded the inner planets in the early solar system, suggests a new analysis of craters on the moon
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Premium
Found 465 results for dwarf planet
Exoplanet found by measuring star's sideways shift
28 May 2009
An alien world has been found by observing subtle changes in a star's position in the sky for the first time – its star is also the lightest known to host a planet
Orange stars are just right for life
6 May 2009
The universe's best real estate for life may be around stars a little less massive than the yellow sun but more massive than red dwarfs
Sibling worlds may be wettest and lightest known
21 April 2009
A planet orbiting a nearby red dwarf may be the first known water world, while its newly discovered neighbour is the lightest
Life-friendly worlds may snap, crackle and pop
18 March 2009
Alien worlds that are hospitable to life could reveal themselves by radio signals crackling from their magnetic fields
Kepler telescope launches to hunt for alien Earths
4 February 2009
The space telescope should be able to see Earth-size planets in the 'habitable zone' of their stars for the first time
What people thought about Pluto's demotion
26 January 2009
Read some of the letters complaining about the decision to strip Pluto of its planetary status
Smallest known exoplanet may actually be Earth-mass
19 January 2009
A tiny planet found last year might be even smaller than first thought – weighing just 1.4 times as much as Earth
2008: The year in astronomy
1 January 2009
Astronomers observed the most powerful explosion ever recorded, detected what may be dark matter and found hints of a fractal universe
2008: The year in the solar system
31 December 2008
Astronomers glimpsed unseen swathes of Mercury, found a space rock heading for Earth and landed a probe squarely on a patch of Martian ice
