Victoria Fx Kpop Girl AsianTree Flower Blossom Spring NatureNight Stars Over Moutain NatureWalking in water on beachRonaldo Soccer Sports Star 7 Fan CaptainRed Pink Flower Zoom NatureWave Summer Nature SeaFunny JapaneseWinter Mountain Snow White Flare NatureTribal beauty clothesWind Turbine SkyAbstract Love ArtPeople   440People   264Stunning SunsetsAstronaut SpaceThis 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.Funny 117Cute   241Building InsideSea Rock Nature Wave