Unexplained oxygen fluctuations

Oxygen levels above Gale Crater appear to fluctuate seasonally and scientists don’t yet know why.

Look at it. Just look at it.

ESA’s Mars Express orbiter has been snapping pics for 16 years.  This recently released pole-to-pole image is astoundingly beautiful. Be sure to click through to the article, where there’s lots of discussion of the details.

Insight – Sol 0

I’m looking at this image and thinking about all the scientists and engineers and technicians involved in the design and assembly of this equipment. How remarkable it must feel to look at this image of their creation sitting on Mars, ready to get to work. Kudos! I mean… wow.