00:00So the purpose of the InSight mission was to learn about the evolution of Mars as a planet.
00:06When did the crust form, how thick is the crust, how did it differentiate, etc.
00:11For work that I've been a part of, the most interesting finding is this present one,
00:16that there is large amounts of liquid water in the subsurface of the planet itself.
00:24So the liquid water is roughly 11 to 20 kilometers beneath the subsurface,
00:30and getting that liquid water would be quite challenging. For example, on Earth,
00:35you often have to circulate fluids, whether that be liquid water or mud,
00:40to make drilling a little bit easier. You also need the power
00:44capabilities and you need to bring those things on Mars or make them on the planet.
00:50So that would be really challenging. Finding water in a liquid form on Mars is important
00:57because water affects just about everything about a planet's evolution.
01:02In Mars, we get to see a water cycle without humans.
01:06We know that water is a key ingredient for life as we know it, and it means that
01:13it's potentially habitable in the mid-crust of Mars.
01:18So there's just so much to learn when you know where the water went.
01:22Mars once looked like Earth three billion years ago, and now it doesn't.
01:26It's dry and it's desolate. So a big question is, where is the water?
01:30Where did it go? So finding it there,
01:35in the volumes that we found it, is really important and exciting.
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