The Philae lander from European Space Agency's Rosetta mission's landed on Comet 67P/Churyumov-Gerasimenko. Credit: ESA - ...

A reddish star is about to pass through a "beehive" of stars. That "star" is actually one of Earth's planetary neighbors.

Look west in early May to find Mars near the Beehive Cluster (M44) in the constellation Cancer. On May 1, use binoculars to ...