Photo of the Kuiper belt object Ultima Thule

Have You Seen the Snowman Floating in Outer Space?

CAPE CANAVERAL, Fla. — The space snowman visited by NASA on New Year's Day is pitted all over and has a bright "collar" between its two fused spheres. These are the newest details to emerge about Ultima Thule, the most distant object ever explored. A clo...

Gene-Edited Baby Claim by Chinese Scientist Sparks Outrage

HONG KONG — Scientists and bioethics experts reacted with shock, anger and alarm Monday to a Chinese researcher's claim that he helped make the world's first genetically edited babies. He Jiankui of Southern University of Science and Technology of China sai...