In a happy twist of fate, NASA’s Hubble Space Telescope witnessed a comet in the act of breaking apart. The chance of that happening while Hubble watched is extraordinarily minuscule.

The Earth is under assault. Space rocks are constantly hurtling toward us, slamming into the atmosphere and often exploding into fireballs that both delight and alarm.

How does fine dust aggregate into building blocks that ultimately form entire planets like our Earth? A research team led by the University of Bern, with the participation of ETH

Every eleven years, the sun’s magnetic field flips. Sunspots—dark, cooler regions on the sun’s surface that mark intense magnetic activity and often trigger solar eruptions—appear at mid-latitudes and migrate toward

In one of the biggest surprises of NASA’s OSIRIS-REx mission, its target asteroid, Bennu, turned out to be a jagged, rugged world covered in large boulders, with few of the