00:01Welcome aboard ESA's Mars Express. Today we're flying over Nilifosse, an enticing patch of Mars that is full of clues
00:10about the red planet's eventful past.
00:14This crater coming up on our left is Hargrave's impact crater.
00:18Like the impact craters we find on Earth, Hargrave's was created when a space rock smashed into Mars' surface, flinging
00:27out ancient material over the surrounding land.
00:31Right now, we're flying over the Nilifosse trenches. Like scratches from a giant cat, these scars are hundreds of metres
00:39deep and hundreds of kilometres long.
00:42The trenches were created when Mars was hit by yet another space rock four billion years ago, creating one of
00:50Mars' biggest craters, located just off screen to our right.
00:55As the surface settled following the impact, some land cracked and fell away, forming the trenches of Nilifosse.
01:04One of the reasons scientists have focused on Nilifosse in recent years is that it is packed with many different
01:10minerals.
01:11These minerals are made in the presence of water, indicating that this region was not always the dry and dusty
01:19landscape that we see below us now.
01:22Because of what it could tell us about Mars' ancient and water-rich past, Nilifosse was considered as a possible
01:29landing site for NASA's Curiosity rover,
01:32before the mission was ultimately sent to Gale Crater in 2012.
01:38Another NASA rover, Perseverance, later landed in the nearby Jezero Crater.
01:50Thank you for joining us on a tour of Nilifosse.
01:53See you next time, on board Mars Express.
01:56See you next time, on board Mars Express.
02:06See you next time, on board Mars Express.
02:09Yes, follow me.
02:11See you next time, on board Mars jevis.
02:14Thank you, everyone.
02:15Many of you.
02:15Since it was a sea
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