SpaceAstronomers have found a second trojan asteroid sharing Earth’s orbit An Earth trojan is an asteroid that shares our planet’s orbit around the sun, moving just ahead of or behind our planet – and astronomers have now discovered that we have two News
SpaceAncient Mars lake had fast-moving floods that carried huge boulders Mars used to have flowing water, which filled Jezero crater with an enormous lake. Images of cliff faces taken by NASA’s Perseverance rover show the lake used to flood 3.7 billion years ago News