US & World

By Ashley Strickland, CNN Mars may seem like a dry, desolate place, but the red planet transforms into an otherworldly wonderland in winter,…

By Rachel Ramirez, CNN From a small island in Polynesia to the white-sand beaches of Florida, the planet experienced a dizzying number of climate and…

By Ashley Strickland and Jackie Wattles, CNN This year, humankind glimpsed the universe in ways that were never before possible, and space missions…

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…