Posts by 

Deborah Byrd

Snow roller in New Hampshire

Have you ever heard of snow rollers? We hadn't either. They're like the snowballs people roll to make snowmen. But, instead of people, nature rolls them.

Virga and cloud shadows over Africa

Virga is rain that falls but doesn't reach the ground. It helped create this spectacular scene over Mutare, Zimbabwe, on March 5, 2019.

One of the last Iridium flares

Only a few of the original, sometimes-glinting Iridium satellites are still in low Earth orbit. They have 3 reflective panels that occasionally catch the sun and produce a visible flare lasting between 5 and 20 seconds.

Asteroids are harder to destroy than we thought

What if we learned an asteroid was headed toward Earth? How much energy does it take to destroy an asteroid and break it into pieces? More than we thought, it turns out.

North Star over New Mexico

Polaris - aka the North Star - is in the center of the great turning wheel of stars in this photo. It's the star around which the entire northern sky appears to turn.

See it! Photos of moon and morning planets

The moon has swept past the planets that are up shortly before sunup this week. The EarthSky community caught the early morning sky scenes.

The next big leap

SpaceX took a giant step this weekend with the successful launch of its Crew Dragon demo capsule, its first spacecraft designed to carry humans.

Touchdown marks on asteroid Ryugu

A new image from Japan's Hayabusa-2 spacecraft reveals a large, dark, irregular spot where the craft landed on asteroid Ryugu's surface last week.

Andromeda galaxy via robotic telescope

James Figge of Delmar, New York captured this image on February 23, 2019 - from the comfort of his home - with the Harvard-Smithsonian 6-inch robotic telescope in Arizona.

Astronomers find a nearby river of stars

Researchers used Gaia data to find a stellar stream of at least 4,000 stars that have been moving together in space since they formed, about a billion years ago.