Posts by 

Deborah Byrd

This date in science: The man who designed the Brooklyn Bridge

John A. Roebling, whose birthday is today, designed the Brooklyn Bridge. But he never saw the bridge come to completion.

Mammatus clouds over Half Dome

Rounded mammatus clouds mirroring the rock structure of Half Dome, at a beautiful Yosemite Valley sunset earlier this month.

Golden Gate, San Francisco, under the stars

This image is from June 1, 2013, looking through Golden Gate towards San Francisco. Meggi Raeder captured it. Thank you, Meggi!

Meteor alert! Possible meteor outburst Tuesday morning

Click here to learn about the mysterious Gamma Delphinid meteor shower, which might produce a good meteor display Tuesday morning, according to clocks in North America.

Hail, 17-year cicadas of 2013!

The 17-year cicada hatch of 2013 is in full bloom. They showed up yesterday in Carbon County, Pennsylvania where Tom Wildoner captured these photos.

Video: Sylvia’s Earle’s plea to protect the ocean

Sylvia Earle says in her new video; "Your world is blue. If you look at it from space, that image alone should have inspired us to think we that, too, are sea creatures."

To celebrate World Oceans Day, watch Reef Live from Australia

Reef Live is a streaming video event from Australia, focused on the Great Barrier Reef. It features some of the world's leading experts and divers.

Northern lights over Wisconsin last night

Earth's geomagnetic field flared into a moderate storm last night, causing northern lights sightings as far south as the northern U.S.

Oldest primate skeleton provides clues to early humans

Oldest known primate skeleton found in China in 2002. While not part of human lineage, this little creature does provide tantalizing clues to our earliest history.

New mosaic from Mars Express: Ancient flood plain on Mars

ESA has released two new images of Kasei Valles, an ancient vast flood plain on Mars. Mars Express spacecraft, launched 10 years ago this week, acquired them.