Scientists have discovered a galaxy with 9 rings around it. The rings are evidence of an earlier collision, and the rings are where new stars are forming.
Earth had an asteroid mini-moon late last year for 2 months. Now scientists say that the mini-moon was likely a chunk of our moon ejected in an impact.
Kelly Kizer Whitt 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.