Using a NASA radar flying aboard India’s Chandrayaan-1 spacecraft, scientists are getting their first look inside the moon’s coldest, darkest craters. The Mini-SAR instrument, a lightweight, synthetic aperture radar, has passed its initial in-flight tests and sent back its first data. The images show the floors of permanently-shadowed polar craters on the moon that aren’t … Continue reading NASA Radar Provides First Look Inside Moon’s Shadowed Craters