Tuesday, October 20, 2015

History repeats itself: Water on Mars...again?

Not to be a downer but my reaction to the recent Nasa announcement about liquid water on Mars was a bit different (although to be clear, it is an exciting discovery). A more suspicious individual might wonder about funding pressure and the timing of this announcement with the theatrical release of a spectacular movie, the Martian, but we won't go there.

I remember a lecture from a University of Michigan professor I attended 5 years ago about how one of the rover pictures almost certainly captured a briny flow on the surface of Mars. I also remember all kinds of announcements about water on Mars growing up. So, I turned to Wikipedia and was not disappointed:

Chronology of discoveries of water on Mars

Turns out someone has actually cataloged this! It is an interesting read for all of you space nerds out there.

Clear skies!