Posts by 

Deborah Byrd

Galaxy halos more common than thought

Astronomers studied 35 galaxies with a newly upgraded radio telescope in New Mexico to learn more about galactic halos. This study confirms a 1961 prediction.

Full spectrum shooting star

You'll see the colors of a rainbow in this meteor ...

Two very different Saturn moons

One moon is small and irregular, and the other is larger and round. These two moons typify the sorts of objects you see throughout our solar system.

Seeing a jet’s shock wave

If you could see the shock wave from a jet moving faster than sound, this is what it would look like.

Wonderful solar halo over Croatia

High above Earth, tiny ice crystals create halos by refracting and reflecting the light of the sun or moon.

Video: Paddle boarding with whales

Touching juxtaposition of a classic John Lennon song with a magnificent video of whales. Video by Jaimen Hudson.

Best photos: Amazing moon and planets October 7-11

Best photos of the moon's glorious sweep past the planets Venus, Jupiter, Mars and Mercury. Photos from EarthSky friends. October 7, 8, 9, 10 and 11.

Mars Curiosity rover sends a postcard

If you want to imagine standing on the surface of the Red Planet Mars ... look at this.

Mysterious ripples race across planet-forming disk

Astronomers have found fast-moving wave-like features - ripples - in the dusty disk surrounding a young star. Nothing like this was ever observed or predicted.

NASA orbiter views real ‘Martian’ sites

Real-life views of places on Mars where a fictional stranded astronaut, Mark Watney - from the Hollywood movie The Martian - undergoes his many trials.