National-World

By Jacob Lev, CNN A Laver Cup tennis match between Stefanos Tsitsipas and Diego Schwartzman in London was interrupted by a protester who lit his arm on fire on Friday. The protester, who was wearing a white shirt that said “End UK Private Jets” ran onto the court at the O2 Arena and briefly lit

By Ashley Strickland, CNN The NASA Double Asteroid Redirection Test aims to make history on Monday at 7:14 p.m. ET when it slams into Dimorphos, a tiny asteroid moon orbiting the larger asteroid Didymos. The impact, if successful, will slightly change the motion of the asteroid. It’s a test of deflection technology that could one

By Ashley Strickland, CNN On Monday, a NASA spacecraft will deliberately slam into an asteroid called Dimorphos. The Double Asteroid Redirection Test mission, or DART, aims to see if this kind of kinetic impact can help deflect an asteroid posing a threat to Earth. “We are moving an asteroid,” said Tom Statler, NASA program scientist

By Ashley Strickland, CNN The Artemis I rocket will get its third launch attempt on Tuesday, September 27, but Tropical Depression Nine could change that. The 70-minute launch window opens at 11:37 a.m. ET and the Space Launch System rocket and Orion spacecraft continue to sit on the launchpad at Kennedy Space Center in Florida.

By Kristen Rogers, CNN More than 15 years after fast radio bursts were discovered, new research has both unraveled and deepened the mystery of the sources of these deep space phenomena. Fast radio bursts, or FRBs, are bright, powerful emissions of radio waves ranging from a fraction of a millisecond to a few milliseconds, each

By Katie Hunt, CNN It’s a hard-fought paleontological debate. Did the massive asteroid that struck Earth 66 million years ago wipe out a thriving and diverse population of dinosaurs, or were they already struggling to survive when that cataclysmic day dawned? Most information on dinosaurs at the end of the Cretaceous era comes from what