Earth 1, asteroids 0: The next generation of planetary defense takes shape at NASA's Jet Propulsion Laboratory
The NEO Surveyor fulfills a 2005 act of Congress ordering NASA to catalog 90% of near-Earth objects larger than 459 feet (140 ...
New Research Suggests Earth’s First Oceans Weren’t Blue: They Were Green
Scientists have discovered evidence that Earth's oceans were once green, hinting that this could be a marker of early life, ...