Irene has strengthened and its eye is now discernable by satellite.
It has been five years since Nix and Hydra, Pluto's tiny moons, were named. Mysteries still abound with the pair.
See the astronomer's-eye view of the massive wildfires in West Texas in these photos from the McDonald Observatory.
Obama just announced the 2012 budget. Life's Little Mysteries did the math to find out how much NASA costs you.