Rare meteorite found by 'fireball' observatory

 作者:寿坯析     |      日期:2019-03-08 07:17:01
A RARE meteorite that may hold clues to the early Earth has been discovered. The basaltic meteorite, named Bunburra Rockhole, was found after it was spotted entering our atmosphere by the Desert Fireball Network in Australia, an array of cameras searching for meteors. The uneven distribution of material in the meteorite and calculations of its orbital trajectory suggest it came from an asteroid a few tens of kilometres wide. This is unusual, as most basaltic meteorites come from a larger asteroid called Vesta. The parent asteroid may have been born close to the young sun,