When there are ice crystals in the air around you, you might see light pillars. They're the result of light reflecting from the crystals suspended in the air or clouds.
In 1670, skywatchers saw a nova, a star that appeared where none had been before. Today's astronomers have learned it was a collision between an aging white dwarf star, and less massive brown dwarf.
Humpback whales have ever-changing and evolving songs. But a new study of whales in Alaska shows their repertoire of calls - including growls, trumpets, and ahoogas - remains more stable. Why?
Whale watchers on a cruise out of Nova Scotia got a thrill when they saw 3 whales breach the surface, one after the other. "We did not drive them," the cruise director commented.
The early morning update on Wednesday, October 10, shows Michael has strengthened more than expected to a Category 4 hurricane. The storm is due to make landfall on the north Florida coast today.
The Hubble Space Telescope has been in safe mode since last Friday evening, following the failure of one of the gyros that helps stabilize it. NASA is analyzing the problem and hopes to resume operations soon.
Night launches are always fun, and this October 7 launch by SpaceX - from Vandenberg Air Force Base, north of Los Angeles, California - generated more than its fair share of awesome images.
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.