Termination Shock: Trying To Cool the Earth by Dimming Sunlight Could Be Worse Than Global Warming

60 Years Ago: John Glenn, the First American to Orbit the Earth aboard Friendship 7

Ancient 'Megafloods' Tilted The Very Direction of Earth's Crust, Scientists Find

Astronomers have discovered a third planet orbiting Proxima Centauri, the star closest to the Sun. It is probably smaller than Earth and could have water.