Over the next few weeks, the European probe Mars Express will be making a series of close passes to the Martian moon Phobos, a wrecked potato that has had an extensively battered history. In January, ME got this shot (among others):
You can see that this little moon has been kicked around quite a bit. Those parallel grooves are still a bit of a mystery; they are most likely cracks that formed when Phobos got whacked, creating the 10-km-wide crater Stickney on one end, but that matter is not 100% settled. Maybe these new observations will help end the debate. [UPDATE: Commenter Big Bob points out that the cracks are most likely not due to the Stickney impact! I haven't kept up on my Phobos groovy research, obviously. Also, in the next bit I say more images are coming, but in fact this close passage of Phobos will not yield very high-res pictures, because this flyby is to measure the gravity field around Mars, and the other instruments -- including the cameras -- must be turned off. Oh well.]
And as nice as this image is, we'll be getting lots better ones soon! So this is a heads-up: closest approach is on March 3, so stayed tuned for more pictures. I'll post 'em as I see 'em.
TODAY IN SLATE
The Budget Disaster that Sabotaged the WHO’s Response to Ebola
Are the Attacks in Canada a Sign of ISIS on the Rise in the West?
PowerPoint Is the Worst, and Now It’s the Latest Way to Hack Into Your Computer
Is It Offensive When Kids Use Bad Words for Good Causes?
Fascinating Maps Based on Reddit, Craigslist, and OkCupid Data
The Real Secret of Serial
What reporter Sarah Koenig actually believes.
The Actual World
“Mount Thoreau” and the naming of things in the wilderness.