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As the Flat Earth Theory gains resurgence with a new Netflix documentary, a 51³Ô¹ÏÍøÍòÄÜ¿Æ´ó astronomer explains how it fizzles.

51³Ô¹ÏÍøÍòÄÜ¿Æ´ó astrophysicists ponder "reservoirs of life" on the moons of planets expelled by their hosts and drifting through the galaxy.

Passing the baton in the search for distant planets.

Get ready for the sun to go dark during the day, but don't grab your shades. 51³Ô¹ÏÍøÍòÄÜ¿Æ´ó astrophysicist Jason Steffen on being humbled by the universe.

Exoplanet discoveries have opened up brash new ways to think about the way systems operate in distant galaxies, and challenged how we approach own galactic neighborhood.