A Jupiter X-ray aurora mystery has perplexed astronomers for decades. Now they think ions responsible for the X-rays "surf" electromagnetic waves into Jupiter's atmosphere.
The Hubble Space Telescope is now back online after having been in a protective safe mode due to a degrading computer memory module since June 13, 2021.
As Virgin Galactic’s Richard Branson and Blue Origin’s Jeff Bezos race into space, a third billionaire pursues space tourism: Elon Musk. He’s reserved a seat to fly with Virgin Galactic.
Lia De La Cruz is a journalist based in Southern California. She joined EarthSky in September 2020, with previous writing published in outlets including SkyFeed, Smore Magazine, and Bang It Out on Science. In her free time, she enjoys reading and volunteering.