'Stickney Crater, the largest crater on the martian moon Phobos, is named for Chloe Angeline Stickney Hall, mathematician and wife of astronomer Asaph Hall.'
A sphinx. There are loads of cool 1900s lantern slides of Egypt uploaded by the Brooklyn museum. Check out the Paris exposition ones as well. via things magazine.
Major geek porn: 'the 10 kilometer-wide crater Heimdall lies on the north polar plains of Mars… the bright spot is the Phoenix lander parachuting toward the surface. The picture was captured on camera onboard the Mars Reconnaissance Orbiter.'