Airglow is a light that occurs high in Earth's atmosphere. It's usually too dim to see with the eye, but photographers can capture glorious photographs of it.
Astronomers have found the stars of our galactic neighbor, the Small Magellanic Cloud, are heading outward. This dwarf galaxy is not rotating, but coming apart.
Kelly Kizer Whitt - EarthSky’s nature and travel vlogger on YouTube - writes and edits some of the most fascinating stories at EarthSky.org. She's been writing about science, with a focus on astronomy, for decades. She began her career at Astronomy Magazine and made regular contributions to other outlets, including AstronomyToday and the Sierra Club. She has nine published books, including a children's picture book, Solar System Forecast, and a young adult dystopian novel, A Different Sky.