SpaceRadioactive dust in Antarctic ice could help map interstellar clouds Interstellar dust has been found in Antarctic snow samples. The discovery could provide a way of mapping the clouds of dust Earth has passed through in space News
SpaceWhat happened when the Shoemaker-Levy 9 comet smashed into Jupiter From the archives: In 1994 comet Shoemaker-Levy 9 hit Jupiter, creating fireballs 2000 kilometres across – and raising US Congress alarm about what would happen if one hit Earth Regulars