Posts by 

Deborah Byrd

Best photos: Comet Siding Spring sweeps past Mars

A sight never seen before in recorded history ... an encounter between Mars and a close-passing comet on October 19, 2014.

How often might Hawaii get a monster tsunami?

Scientists say that the tsunami that hit Japan in 2011 was a thousand-year event. A monster wave might strike Hawaii about as often.

Comet Siding Spring’s near-miss of Mars was October 19

The close pass of Comet Siding Spring to Mars was exciting! Closest approach was October 19. Watch for photos from the event here at EarthSky.org.

Moonbows!

A moonbow is like a rainbow, but fainter, caused by moonlight.

Alright! Hubble finds potential targets for Pluto spacecraft

After a long search at the solar systems' fringes, scientists say they have three possible targets for the New Horizons spacecraft after its July 2015 Pluto flyby.

This hummingbird video will melt your heart

Hummingbirds playing in a fountain. Toward the end, listen for the little clicks and chirps.

Chinese mantis

Say hello to an insect friend ...

Milky Way’s dark matter half what we thought?

Australian astronomers say our Milky Way galaxy has only half the dark matter we thought it did. If so, it explains the shortage of Milky Way satellites.

Comet Siding Spring near M6

Comet C/2013 A1 Siding Spring near the star cluster M6 on October 9, 2014.

Full moon rising over Lotus Temple in Delhi, India

We saw many photos of the October 8 moon during the total lunar eclipse. Here's one from India, where the eclipse was less easily visible.