Posts by 

Deborah Byrd

Another powerful earthquake rocks northern Chile

For the second time in two days, a powerful earthquake has struck Chile. Today's quake was 7.6 magnitude. It's considered an aftershock of the 8.2-magnitude quake on April 1.

Aurora alert for April 1 and 2

The first of three sets of solar particles are now en route to Earth and are expected to deliver glancing blows to Earth beginning April 1 and into April 2.

Last night’s young moon

Enjoy the waxing moon in the coming weeks! When full moon comes, on the night of April 14-15, we in the Americas will get to see a total lunar eclipse.

Pointing to star Spica and planet Mars

It's nearly the best time in two years to see Mars. On April 8, Earth in its smaller, faster orbit will pass between Mars and the sun.

4.8-magnitude earthquake in Yellowstone Park on March 30

Yellowstone National Park is above a hotspot below the crust of the Earth. Its hot springs and geysers make it a popular tourist attraction. It is also riddled with fault lines ...

X-flare of Saturday, March 29

Solar flares are short-lived but powerful bursts of radiation. They are our solar system’s largest explosive events, lasting minutes to hours on the sun’s surface.

Miss the moon and Venus this morning? Photos here

Photos from friends around the world of the March 27 and March 28 pairing of the moon with Venus. Thank you, everyone, for posting!

Theory suggests source of white dwarf pollution … and ominous fate for Earth

A new theory, advanced to explain how the atmospheres of collapsed stars become polluted, points to ominous fate awaiting planet Earth.

Video: Smart crow!

A BBC production shows a crow solving an 8-step puzzle to get food.

World’s first robotic planet hunter

Every night, the Automated Planet Finder checks the weather, decides which stars to observe, and moves the telescope from star to star, looking for distant planets.