NASA astronauts undock from space station after weeks of delay
01:10
NFL rolls out new helmets to protect players from violent hits
02:30
SpaceX’s Starship rocket booster successfully returns to launch tower's arms
00:59
Bill Nye explains how climate change is impacting Hurricane Milton
06:26
SpaceX launched to space to bring back stranded astronauts
01:53
New research finds Van Gogh's ‘Starry Night’ skies align with physics
06:00
NBC News
Scientists Mount Cameras to Whales to Learn About Antarctic Voyages
01:00
Copied
Scientists are attaching cameras on the backs of whales to learn how they live in the Antarctic. Their voyage and time in the icy region still remains a mystery to biologists.April 19, 2017