During the last week of September 2011, the coastline of San Diego County had bioluminescent surf that appeared lit from within by tiny sea creatures. See the videos.
During a solar eclipse, the moon's shadow creates waves in Earth's atmosphere, much as a ship moving through the ocean creates waves at its bow and stern.
Solar wind sandblasts Mercury because its weak magnetic field provides little protection from the fierce solar wind, a squall of charged particles from the sun.
Check out this video showing terrified visitors inside the Washington Monument as a 5.8-magnitude earthquake shook the U.S. East Coast on August 23, 2011.
A geomagnetic storm is in progress. If it's nighttime, and you're at a high latitude, go outside and look for auroras! And quit worrying, you. Just enjoy.
UARS penetrated the atmosphere over the Pacific. No debris has been found. There are no reports of injury or property damage. Hoax videos are circulating.
Our solar system might've once had five gas giant planets. The fifth might have gotten the boot after a close encounter with Jupiter, 3.9 billion years ago.
Deborah Byrd (asteroid 3505 Byrd) helps edit EarthSky.org and is a frequent host of EarthSky videos. Deborah created the EarthSky radio series in 1991 and founded EarthSky.org in 1994. Prior to that, she had worked for the University of Texas McDonald Observatory since 1976, and created and produced their Star Date radio series. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named in her honor in 1990, a Public Service Award from the National Science Board in 2003, and the Education Prize from the American Astronomical Society in 2020. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. "Being an EarthSky editor is like hosting a big global party for cool nature-lovers," she says.