White dwarf shreds and vaporises asteroid
21 December 2006
An asteroid has been ripped to shreds and vaporised after straying too close to a hot white dwarf star – one day, the same thing may happen in our solar system
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Found 317 results for dwarf planet
Unruly star may be swallowing embryonic planets
15 November 2006
The sudden appearance of a bright cloud near a low-mass star may be evidence of a grisly feast
Bizarre stellar outburst continues to baffle
30 October 2006
New observations suggest a strange brightening of the star V838 Monocerotis in 2002 could not be due to an explosion on a white dwarf, as previously thought
Brown dwarfs may stretch out exoplanets' orbits
20 September 2006
Many extrasolar planets travel in elongated orbits – gravitational tugs from unseen brown dwarfs may be partly to blame
Former 'tenth planet' named for goddess of discord
14 September 2006
The object that sparked the row over Pluto's status has now been christened 'Eris' after the Greek goddess of discord, who helped start the Trojan War
Pluto added to official "minor planet" list
7 September 2006
The former planet will henceforth be known as minor planet 134340 Pluto, underscoring its recent demotion from planethood
Star pair masquerades as a planetary system
7 September 2006
A deceptive looking duo of low-mass stars, revealed by Hubble, will add to the heated debate over what constitutes a planet
Pluto is down but not out
2 September 2006
The decision to relegate Pluto from planet to "dwarf planet" was a wrench for astronomers, but there's no need for a tearful farewell, says Stephen Battersby
Rows over planetary status are as old as the asteroids
2 September 2006
Even as you mourn Pluto's demotion from planet, spare a thought for poor old Ceres, which has twice battled to attain planetary status
Astronomers plot to overturn planet definition
31 August 2006
Several hundred researchers have signed a petition to do away with the new definition, which strips Pluto of its status as a planet
