Hugh O'Neill Latest articles by Hugh O'Neill Ancient Earth had a thick, toxic atmosphere like Venus — until it cooled off and became liveable By Antony Burnham, Hugh O'Neill published 20 December 20 Earth is the only planet we know contains life. Is our planet special? Venus Get the Space.com NewsletterBreaking space news, the latest updates on rocket launches, skywatching events and more!Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors MORE FROM SPACE...1Evidence of controversial Planet 9 uncovered in sky surveys taken 23 years apart2The 530 km-wide asteroid Vesta reaches opposition later this week, here's how to catch it in the night sky3James Webb Space Telescope captures thousands of galaxies in a cosmic 'feast' (image)4The Eta Aquarid meteor shower peaks May 6. Here's what to expect from the 'crumbs' of Halley's Comet5Doubts mount further over signs of alien life on K2-18b: 'This is evidence of the scientific process at work'
Ancient Earth had a thick, toxic atmosphere like Venus — until it cooled off and became liveable By Antony Burnham, Hugh O'Neill published 20 December 20 Earth is the only planet we know contains life. Is our planet special?
