Posts by 

Deborah Byrd

Giant iceberg on the move

The calving of this iceberg in July reduced the size of Antarctica's Larsen C ice shelf by 12 percent. The berg hung near the coast awhile, but now it's seen drifting.

Fast radio bursts firing every second?

New theoretical work indicates at least 1 fast radio burst, or FRB, going off somewhere each second. It contradicts the idea that FRBs might be evidence of an alien technology.

Moon, Antares, Saturn on September 25, 2017

On September 25 and 26 , 2017, watch for the waxing crescent moon to swing to the north of the star Antares, then to the north of the planet Saturn.

Sun photobombed Mars encounter with comet Siding Spring

Comet Siding Spring swept closer to Mars than any known comet in recorded history, creating the largest-ever-known meteor shower. But the sun got in on the act.

Astronomers find strange, comet-like double asteroid

Comets are loose collections of ice and dust, sometimes with long tails. Asteroids are more rocky or metallic. Now astronomers have found a comet-like double asteroid.

Earth will give this spacecraft a gravity boost today

OSIRIS-REx - bound for a 2018 encounter with asteroid Bennu - will sweep in close to Earth on Friday. It'll be closest today just before 16:52 UTC (12:52 p.m. EDT).

See it! Young moon and Jupiter

Wow! So many beautiful photos of something relatively hard to catch … the young moon returning to the evening sky this week next to the bright planet Jupiter.

Triple lightning hits the sea

Roberto Porto captured this image on September 15. He's on the island of Tenerife, one of Spain's Canary Islands, off West Africa.

See it! Dance of planets before dawn

Mars emerged before dawn last week, to meet Mercury below bright Venus. And then the moon passed through. Thanks to all who submitted photos!

Dust devils on Earth and Mars

Researchers spent 5 years studying dust devils in earthly deserts. They said their research has implications for climate and weather on both Earth and Mars and for human health.

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