On This Day in Space! Dec. 14, 1962: Mariner 2 Spacecraft Flies by Venus
NASA's Voyager 2 Went Interstellar the Same Day a Solar Probe Touched the Sun
Early Universe 'Soup' Cooked Up in Weird Plasma Blobs
'Smoking Gun' Planet: This Neptune-Size Alien World Is Evaporating in Record Time
See Mars Near the Moon in the Night Sky Tonight! Here's How.