Parts of the Americas was treated to a Total Lunar Eclipse (also known as a "blood moon") in March. Credit: NASA/JPL-Caltech ...

Many never witness this wonder. About one-third of people, including 80% of Americans, can’t see the Milky Way at all. The ...

Explore This SectionScienceScience ActivationEclipses, Auroras, and the… OverviewLearning ResourcesScience Activation ...

While asteroids are more easily discovered with optical telescopes, radar images shine when it comes to details.