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Night sky from Antelope Canyon in Arizona
The night sky through the high walls and narrow opening of Upper Antelope Canyon in Arizona.
April 10, 2014
Cataclysmic asteroid impact some 3.26 billion years ago
Scientists have reconstructed a collision between the early Earth and an asteroid. It dwarfed the event that caused dinosaurs to go extinct 65 million years ago.
April 9, 2014
Star aligns with planetary nebula to create diamond ring
It looks like the diamond ring effect seen during total solar eclipses. It's really a distant, dying star and its shell of gas, with another star in front of it.
April 9, 2014
Atlantic sunglint reveals tails for Canary Islands
A particular quality of the light reflecting from the Atlantic Ocean reveals wavy, windsock-like tails stretching to the southwest from each of the Canary Islands.
April 9, 2014
Warm water in Pacific could spark a monster El Nino in 2014
Scientists are watching a giant mass of sub-surface water in the Pacific. When this water reaches the sea surface, it could set off a powerful El Nino.
April 8, 2014
Bright Mars
Earth goes between the sun and Mars on April 8. Mars is now brighter in our sky than it has been in six years, since December 2007.
April 8, 2014
Astronomers make most precise measurement yet of expanding universe
A new analysis says that 10.8 billion years ago, the universe was expanding by one percent every 44 million years.
April 7, 2014
Ride along with a rocket to space
What a ride! Cameras mounted on the upper stage of a Soyuz rocket on April 3, 2014 looked earthward during a satellite launch.
April 7, 2014
Earthquakes in Yellowstone: ‘Elevated but not unusual’
Heard about the recent earthquakes in Yellowstone? How about that video of bison fleeing the park? Does it mean the supervolcano is about to blow? No, and here’s why.
April 7, 2014
Astounding photos of marine worms, some previously unknown to science
Alexander Semenov photographed 222 different worm species, which are now in the process of being studied and documented by scientists. See photos.
April 7, 2014
