An Earth-Sized Neighbor May Be the Most Important Exoplanet Yet

Astronomers have discovered a rocky, Earth-sized planet 39 light years from home—right in our cosmic backyard. With a surface temperature of 440 degrees Fahrenheit, GJ 1132b is more of an intergalactic furnace than a vacation prospect. Yet some are hailing it “the most important planet ever found outside our solar… »11/11/15 1:00pm11/11/15 1:00pm

Astronomers Want to Watch Comets Slam Into Distant Planets

If a massive comet struck the Earth, the oceans would boil and the air would catch fire (don’t worry, this isn’t about to happen). But to alien astronomers studying our planet from afar, humanity’s brutal demise would look like nothing more than a faint flicker of light. If we could detect such impacts on distant… »9/06/15 12:00pm9/06/15 12:00pm