Going on simultaneously with COP 17, Mountain Day calls attention to climate change impacts on mountain people in the Hindu Kush-Himalayan high mountain region.
Orbiting spacecraft have now seen avalanches of dust on the surface of the planet Mars. Martian avalanches and quakes might be caused by meteor airbursts.
Some Martian gullies at the poles might have formed when a seasonal accumulation of carbon dioxide frost sublimed - turned directly from a solid to a gas.
In the Whale Song Project, you can help figure out which groups of whales have different dialects. Maybe even help figure out what some whale songs mean.
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.