Mercury and Saturn are in conjunction on November 23, but hard to spot in the sunset glow. On the mornings of November 24 and 25, the moon appears near Jupiter before dawn.
A new analysis of hundreds of studies says that almost every aspect of life on Earth has been affected by climate change ... and that's not good news for humans.
It's record-breaking because it's so faint. Could this galaxy be a sign of many yet-unknown dwarf galaxies orbiting our Milky Way? And do we now have a way to detect them? Astronomical theorists hope so!
Remember the famous bright spots on dwarf planet Ceres? Some thought they looked like signs of an alien intelligence. Here's a recent view from a new angle, by the Dawn spacecraft.
California has dry spells, but the state hasn't had exceptional drought since at least 2000. Now, about 20 percent of California is in exceptional drought, and many trees have died.