After providing the world with spectacular close-up images of Pluto and its icy moons in the summer of 2015, NASA’s New Horizons is zipping off into uncharted territory a billio...

Two summers ago, on August 21, 2017, thousands of people from across the world witnessed the "Great American Solar Eclipse," the first total solar eclipse to occur exclusively o...

On September 15, 2017, Cassini’s 19 year, 11 month, 0 day, 3 hour, 12 minute and 46 second long mission ended with a plunge into Saturn, the planet it had been orbiting for 13 y...