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Watch the Arctic ice pack vanish
Decades ago, most of Arctic's winter ice pack was made up of thick, perennial ice. Not anymore. Watch the change in this one-minute animation.
April 23, 2015
Special Earth Day video: The Untouched
It showcases the beauty of nature and tries to convey that "we can’t reverse time to travel back to bring back all that we have lost by mistake."
April 21, 2015
Celebrate Earth Day 2015 with NASA
Share pics and video of your favorite places on Earth to social media with hashtag #NoPlaceLikeHome.
April 21, 2015
What’s the real deal with shark attacks?
Sharks are incredibly unlikely to bite you. They’re even less likely to kill you. However, we remain fascinated with their ability – and occasional proclivity – to do just that.
April 21, 2015
From fins to legs to fins again
Marine tetrapods, a group of animals including whales, dolphins, seals, and sea turtles, have moved from sea to land and back to the sea over the last 350 million years
April 20, 2015
Ocean acidification drove Earth’s largest mass extinction
New evidence suggests that ocean acidification played a key role in the Permian–Triassic mass extinction event 252 million years ago that killed most life on Earth.
April 20, 2015
What is the smell of rain?
The word for it is "petrichor." It’s the name of an oil that’s released from Earth into the air before rain begins to fall.
April 18, 2015
What happens underground when a meteor hits
High-speed videos show what happens underground when an asteroid - or missile - strikes Earth.
April 17, 2015
Sperm whale meets deep-sea vehicle
Encounters between sperm whales and ROVs - remotely operated underwater vehicles - are rare. Watch this video, posted April 14.
April 15, 2015
Tornado track in northern Illinois
Satellite view makes clear how unlucky the 150 people of the town of Fairdale were on April 9.
April 15, 2015
