You can see in this composite by Scott MacNeill that - in the past few years - Saturn's rings have been appearing increasingly open from our earthly perspective.
Scientists combined telescopes on Earth and in space to learn that this famous quasar has a core temperature hotter than 10 trillion degrees! That's much hotter than formerly thought possible.
At 5.6 million square miles, 2016 had the lowest winter sea ice maximum in the 37-year satellite record. It's slightly lower than the previous record, set last year.
It's small, but, because it's so close to us, it appears to be moving very fast across our sky. Image and video by EarthSky community member Greg Hogan.
Did the 'man in the moon' look different from ancient Earth? Yes, according to new research showing that the moon has undergone what's called True Polar Wander.
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.