This artist’s impression shows how Mars may have looked about four billion years ago. The young planet Mars would have had enough water to cover its entire surface in a liquid layer about 140 metres deep, but it is more likely that the liquid would have pooled to form an ocean occupying almost half of Mars’s northern hemisphere, and in some regions reaching depths greater than 1.6 kilometres. – ESO/M. Kornmesser/N. Risinger (skysurvey.org)

Related channels: ASTROBIOLOGY, EARTH, MARS, EUROPA, ENCELADUS, COMETS, ASTEROIDS, EXOPLANETS, TRAPPIST-1, DWARF PLANETS

Sorry, there was a YouTube API error: Backend Error Please make sure you performed the steps in this video to create and save a proper server API key.

Also Recommended

TOP 10 SPACE YOUTUBE CHANNELS 2018 CURIOSITY (NASA ROVER) EUROPA CLIPPER (NASA SPACECRAFT) SPACE WEATHER SKYLAB (SPACE STATION) UNITED STATES SPACE FORCE (USSF) SPACE WEAPONS & DEFENSE ESA: EARTH FROM SPACE CATECHISM: SPACE COMMERCIAL SPACE Image : Rosetta fly-by near a comet. Frame from the movie “Chasing A Comet – The Rosetta Mission” – DLR, CC-BY 3.0EURONEWS SPACE MAGAZINE SPACE TELESCOPES SPACE VIDEOS FOR KIDS SPACE TOURISM JAMES WEBB SPACE TELESCOPE ISS (SPACE STATION) KEPLER SPACE TELESCOPE MIR (SPACE STATION)