ScienceAsteroid 1950 DA might wipe out humans in 2880: Can we do anything to stop it? Scientists in intense study of asteroid given best odds on hitting the earth centuries from now. Composition of the near-Earth objects comes as a surprise, they say.by Jim Algar
ScienceWhy seven dust particles brought home by Stardust probe are important to humansby Lori Sandoval
ScienceMountain lions in Santa Monica Mountains, trapped by freeways and urbanization, risk inbreeding and isolationby Jim Algar