There are 293 confirmed moons in our cosmic neighborhood. By studying these worlds, astronomers hope to learn about ancient asteroid collisions, space volcanoes, and the origins of life itself.
On Dec. 26, 2022, the solar wind disappeared on Mars. In a new study, researchers led by Jasper Halekas at the University of Iowa explain why the ever-present solar wind vanished. Halekas will present the findings for media on Dec. 11 at the American Geophysical Union annual meeting in San