ESA reports on the state of low-Earth orbit. The number of satellites in orbit is skyrocketing, along with the chance for collisions and on-ground casualties.
Astronomers studying planetary systems in the Milky Way have found they can be sorted into 2 families. These families are largely determined by the host star.
An inactive Soviet weather satellite has broken apart above Earth. The satellite breakup has added tens of debris fragments to an already crowded low-Earth orbit.
On October 6, 2026, NASA released an image of Martian dawn from the Curiosity rover. The image captures a pale light illuminating distant cliffs and crags.
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.