Farewell to Gaia, the Milky Way’s Cartographer
After more than a decade of mapping the stars, the European spacecraft was shut down on Thursday. But its legacy lives on.
Earth 1, asteroids 0: The next generation of planetary defense takes shape at JPL
The NEO Surveyor fulfills a 2005 act of Congress ordering NASA to catalog 90% of near-Earth objects larger than 459 feet (140 ...