Global CO2 emissions are cooking the planet and 'show no sign of decreasing,' report warns

Keck's new Planet Hunter Instrument Comes Online, Searching for Smaller, More Earth-Sized Exoplanets

In Photos: See Giant Planet Jupiter Looking Its Best In New Images Just Back From NASA’s Juno Spacecraft

Glaciers in Yellowstone and Yosemite on track to vanish within decades, UN report warns