US & World

By Katie Hunt, CNN Sometime during the Cretaceous Period, 120 million years ago, a dinosaur wolfed down its last meal — a small mammal the size of…

By Kristen Rogers, CNN Scientists have identified two minerals never before seen on Earth in a meteorite weighing 15.2 metric tons (33,510 pounds).…

By Jackie Wattles and Ashley Strickland, CNN From a spacecraft the size of a refrigerator plowing into an asteroid (deliberately) to a helicopter…

By Jackie Wattles, CNN Officials at NASA and Russia’s space agency, Roscosmos, are working to decide how to bring home several people at the…

By Rachel Ramirez, CNN It was only a matter of time before human-caused climate change and pollution reached even the most isolated continent on the…

By Ashley Strickland and Jackie Wattles, CNN The International Space Station got its second solar power boost in a month as two NASA astronauts…

By Danya Gainor, CNN The National Marine Aquarium, the largest display for sea life in the United Kingdom, has officially welcomed Heidi, an olive…

By Ashley Strickland, CNN After making groundbreaking discoveries about the mysterious interior of the red planet, the InSight lander’s mission…