A geomagnetic storm sparked a display of auroras on the night of April 9-10. Auroras sighted as far south as Colorado! The storm may intensify later today.
Previously, only one RR Lyrae star - of many thousands known - was found to orbit in a double star system. Now astronomers have upped the tally by 2000%!
Since 1975, when Hawking showed that black holes evaporate from our universe, physicists have tried to explain what happens to a black hole's information.
Don't miss these images of eclipses of the sun caused by Earth, taken by various spacecraft on the moon, orbiting the moon, or returning from the moon.
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.