Back to Article List From the January 2010 issue Astro Confidential: Our turn: Jim Kaler Jim Kaler is a professor emeritus of astronomy at the University of Illinois at Urbana-Champaign and the author of 14 books. By Karri Ferron | Published: January 25, 2010 | Last updated on May 18, 2023 Bryan Dunne Learn more about Jim Kaler.
Science, Solar System Why meteorites that hit Earth have less water than the asteroid bits brought back by space probes — a planetary scientist explains