Posts by 

Deborah Byrd

Images of closest supernova in years, in galaxy M82

You'll understand why astronomers say a supernova can outshine a whole galaxy.

Video: The known universe

Check out a video simulation of the known universe, as mapped through astronomical observations.

How sunlight lowers your blood pressure

Hypertension and cardiovascular disease correlate with latitude and rise in winter. Scientists have learned how exposure to sunlight reduces blood pressure.

Rosetta is awake!

Wake-up began at 10 UTC this morning, triggering changes aboard the spacecraft that would result in its antenna sending a signal our way. Signal received!

Comet Lovejoy heading outward again

Comet Lovejoy came faintly visible to the eye in early November 2013. It was closest to the sun on December 22. It's currently on the outbound leg of its orbit.

Rapid spread of California’s Colby Fire on January 16

As of Friday morning, Inciweb was reporting 1,709 acres burned. A Red Flag Warning has been extended to today due to a Santa Ana wind event.

R.I.P. John Dobson

John Dobson is a hero to all who love astronomy, telescopes, and astronomy for the public.

Moon photo, and a drawing of a lunar crater

Sometimes an astronomical drawing can capture what a photo cannot.

Did China test a new hypersonic glide vehicle?

A story is circulating on social media about China's new hypersonic glide vehicle. Here are some questions.

Jupiter, airplane, lunar halo over Manila January 13

We knew something was up yesterday when we got thousands of hits to an article about lunar halos. It was a lunar halo seen in Asia.