Four billion years ago, Mars had a massive ocean covering its northern hemisphere, with river deltas proving liquid water was stable for millions of years; however, when Mars lost its magnetic field, solar winds stripped away the atmosphere, causing the water to either evaporate into space or freeze underground, transforming the planet from a blue world to a frozen wasteland.
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MARS WAS ACTUALLY BLUE... 🌊 #science本站添加:
This is Earth's 4 [music] billion years ago. It's the northern hemisphere of Mars buried under a 2-mi deep ocean.
Rovers confirmed massive river deltas, proving liquid water was stable for millions of years. But today, it is a frozen wasteland. When Mars lost its magnetic field, solar winds stripped the atmosphere, forcing the water [music] to evaporate or freeze underground. Where do you think the remaining water is hidden today? Let us know in the comments.
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