NASA radar flying aboard India’s Chandrayaan-1 spacecraft is giving scientists their first look inside the moon’s coldest, darkest craters. The Mini-SAR instrument, a lightweight, synthetic aperture radar sent back images of the floors of permanently-shadowed polar craters on the moon that aren’t visible from Earth. Scientists are using the instrument to search the insides of the craters for water ice.

Book Review: A Future Spacefaring Society
We are at the cusp of building an orbital industrial infrastructure and establishing human settlements in space. This book investigates what it takes to do that.


