A New Paper on Aliens Has Elon Musk Wanting to Leave The Planet Again

A Huge, Previously Undetected Asteroid Just Came Very Close to EarthIf Planet Nine Exists, It Could Spell Disaster For Other Planets in The Solar System

How to Watch This Week's Breathtaking 'Ring of Fire' Solar EclipseNASA Plans to Send an Autonomous Submarine to Explore Titan's OceansNew Solar System Objects Just Made The Case For Planet Nine Even Stronger

Scientists Just Emerged From a Year in Isolation After an Epic NASA-Funded Mars SimulationAstronomers Have Detected a Mysterious Radio Signal Coming From a Sun-Like Star

In Space, Scott Kelly Aged Slower Than His Brother on Earth – And Here's Why

NASA Just Flew a Spacecraft Closer to Jupiter Than Ever Before10 Days After Its Launch, Orion Has Successfully Entered Lunar Orbit

We Finally Know How Black Holes Produce The Most Brilliant Light in The UniverseScientists Glimpse Incoming Asteroid Just Hours Before It Makes Impact

Man Keeps Rock For Years, Hoping It's Gold. It Turns Out to Be Far More ValuableHere's How NASA Determines Which Applicants Make It to Be Astronauts