US & World

By Ashley Strickland, CNN The James Webb Space Telescope has observed its smallest cosmic object to date — a previously unknown asteroid about the…

By Jackie Wattles, CNN It’s now been half a decade since SpaceX turned heads around the world with its decision to launch Elon Musk’s…

By Ashley Strickland, CNN Look in the night sky this weekend for February’s full moon, where it can be glimpsed around the world. It will reach…

By Jonny Hallam and Emma Tucker, CNN At least 22 people have died in connection with widespread forest fires in south-central Chile, according to…

By Ashley Strickland, CNN In the golden age of space exploration we live in, cosmic revelations seem to occur more frequently than ever before. This…

By Ashley Strickland, CNN In the past year, a tiny helicopter flew on Mars, a NASA spacecraft slammed into an asteroid and the James Webb Space…

By Laura Paddison, Krystina Shveda and Jhasua Razo, CNN Even as the world smashes through one all-time heat record after another and speeds towards…

By Amarachi Orie, CNN A scan of the skull of a 319-million-year-old fossilized fish has led to the discovery of the oldest example of a…

By Katie Hunt, CNN Some 125,000 years ago, enormous elephants that weighed as much as eight cars each roamed in what’s now northern Europe.…

By Ashley Strickland, CNN When the Vikings crossed the North Sea to reach Britain in the ninth century AD, they brought their dogs and horses with…

By Ashley Strickland, CNN An unusual star system created more of a fizz and less of a bang when it exploded in a supernova. The lackluster explosion,…

By Ashley Strickland, CNN A recently discovered green comet will soon zip by Earth for the first time in 50,000 years. It was last visible in the…

By Katie Hunt, CNN No other animal is as inexorably linked with extinction as the dodo, an odd-looking flightless bird that lived on the island of…