The moon's final quarter arrives May 20, offering stunning views of half its surface lit. Discover the best ways to observe ...

NASA's Stereo Cameras for Lunar-Plume Surface Studies (SCALPSS) captured the landing of Firefly's Blue Ghost landing on the ...

In this episode, Astronomy magazine Editor Dave Eicher invites you to head out in the early morning hours of May 22 and ...

The moon's last quarter - or final quarter phase will occur at 07:59 a.m. EDT (1159 GMT) on the morning of May 20 for viewers ...