Posts by 

Deborah Byrd

Great images of fireball over Bering Sea

Last December 18, a big "fireball" or bright meteor exploded above the Bering Sea with more than 10 times the energy of the atomic blast over Hiroshima. Satellites saw it all.

Star trails over Colorado

A peaceful scene in Colorado, the week of the March equinox.

Night basketball

As we shift into spring here in the Northern Hemisphere, the nights are beckoning!

Hyper-runaway star fled Milky Way disk

University of Michigan astronomers say a hyper-runaway star didn't originate from the galaxy's center, as previously believed. Instead, they say, a cluster of young stars booted it from the galaxy's disk.

See the Opportunity rover’s last image

Opportunity - nicknamed "Oppy" - was active on Mars from 2004 until June, 2018, when a planet-wide dust storm covered it. Its final image is a panorama, acquired from Opportunity's final resting place in Mars' Perseverance Valley.

Astronomers probe a baby star’s mystery gas flows

They used the ALMA telescope to observe a slow outflow and a high speed jet from a newly forming star. These two streams appear misaligned and were apparently launched from different parts of the star-forming disk.

How Hubble and Gaia weighed the Milky Way

Scientists used the measured velocities of 44 globular star clusters to measure the mass of our home galaxy, the Milky Way.

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.

EarthSky Newsletter

Nearly half a million daily subscribers love our newsletter. What are you waiting for? Sign up today!

Join now to receive free daily science news delivered straight to your email.