Bright Side: Space

Explore remarkable moments and discoveries from space, including Bruce McCandless' historic untethered spacewalk, the first animals sent beyond Earth and new research revealing the ancient heart of the Milky Way.

Did our solar system once contain another planet? Explore the abandoned theory of Phaeton, the origins of the asteroid belt and other strange stars and celestial phenomena that have challenged scientists and changed our understanding of space.

Journey to some of the universe's most extreme destinations, from a neutron star spinning 716 times per second to the metal-rich asteroid Psyche. Discover what these unusual objects can reveal about stars, planets and the origins of our solar system.

Did life once exist on Mars? Discover strange oxygen patterns, evidence of ancient water and other clues uncovered by NASA's Curiosity and Perseverance rovers as scientists investigate whether the Red Planet was once habitable.

Uncover cosmic mysteries that challenge what we know about the universe—from scientists' search for its earliest light to a strange planet that appears to defy the laws of physics.

Explore strange phenomena close to home, from an asteroid believed to be a fragment of the Moon and the approaching asteroid Apophis to mysteries surrounding the North Star. Plus, discover why future lunar explorers will need a new way to keep time.