TimeLeopard t1_it29c13 wrote on October 20, 2022 at 12:39 PM

Reply to comment by canyonstom in Curiosity Mars Rover Reaches Long-Awaited Salty Region by Pluto_and_Charon

Well also consider that even if Earth and Mars are the same age, we can factor in that most models predict the moon slaming into earth during its early formation. If the same event didn't happen until much later in Mars formation, it could be possible Mars had a head start. Granted didnt Phobos slam into Mars too? I don't really know when that was supposed to have happened.

But yeah I'm getting way into speculation here than actually any science.

danielravennest t1_it3nyy6 wrote on October 20, 2022 at 6:21 PM

> Granted didnt Phobos slam into Mars too? I don't really know when that was supposed to have happened.

50 million years from now, if we don't mess with it. By then we could have mined it for raw materials, or turned it into an anchor for a space elevator.

We don't know how Phobos and Deimos came to be, but one idea is debris kicked up by an asteroid collision, that then came together by gravity. There are plenty of big craters on Mars that could have been a source.