Bubble in a drop of water on the ISS that shows two images of André Kuipers.
A better shot than the one of Clayton Anderson on STS-131 that I linked to way back when but the physics is the same, of course.
via Bad Astronomy
swans on tea
Just another SFN Blogs site
NASA was going to containerlessly bulk manufacture perfectly spherical ball bearings in the micro-gee environment. How did that work out?