Sagittarius C Region Contains Hundreds of Thousands of Solar Masses of Young Stars: Study

Virus That Infected the First Animals Hundreds of Millions of Years Ago Is Essential for Embryo Development

NASA’s JPL Lays Off Hundreds of Workers

Is there life on Mars? Congressional gridlock is getting in the way of an answer. NASA cut hundreds of jobs Tuesday at one of its key laboratories that sends robots to Mars, despite dozens of lawmakers urging the agency and the White House to avoid such a move.