Subscribe to Breaking News emails
You have successfully subscribed to the Breaking News email.
Subscribe today to be the first to to know about breaking news and special reports.
NBC News Science
Astronaut’s DNA different than his twin’s after year in space01:46
Scott Kelly’s DNA was altered by his year in space, NASA says02:40
Stephen Hawking dead at 7601:38
Stephen Hawking, physicist who wrote ‘A Brief History of Time,’ dies at 7603:21
The U.S. military's plan to fight climate change02:27
SpaceX’s Falcon Heavy rocket nails its maiden test flight02:02