The Sun Has Been Hibernating for Years. It Might Be Waking Up
Scientists have observed an M-class solar flare, the most powerful in three years. It could herald the beginning of the Sun's active, stormy phase.
SpaceX's Historic Crewed ISS Launch Postponed After Dramatic Day
The launch, which would have been the first from American soil since 2011 and heralded a new era of private sector space flight, was postponed after a tense day that included a tornado warning.
Scientists Think They’ve Found a New Type of Star-Destroying Black Hole
A new analysis of Hubble data has revealed the best candidate yet for a type of black hole that nobody has seen yet, and it gave itself away by tearing a star apart.