Nov. 29, 2012
The planet closest to the Sun would seem an unlikely place to find ice. Nevertheless, NASA's MESSENGER spacecraft has found evidence for abundant deposits of frozen water on Mercury.
Nov. 23, 2012
Eclipse chasers always hope for clear skies, but observers of last week's total solar eclipse in Australia discovered that clouds added something surprisingly beautiful to their brief minutes in the shadow of the Moon.
Nov. 22, 2012
NASA's NuSTAR spacecraft has detected X-ray flares coming from the center of the galaxy--a signal that the Milky Way's supermassive black hole is having dinner.
Nov. 9, 2012
NASA has found a cure for a common phobia--the fear of asking "stupid" questions. The solution to this problem might surprise you.
Nov. 7, 2012
Scientists and sky watchers are converging on the northeast coast of Australia, near the Great Barrier Reef, for a total eclipse of the sun on Nov. 13/14. For researchers, the brief minutes of totality open a window into some of the deepest mysteries of solar physics.
Oct. 31, 2012
New results from NASA's Mars rover Curiosity show that the mineralogy of Martian soil is similar to weathered basaltic soils of volcanic origin in Hawaii.
Oct. 25, 2012
Astronomers have caught a red giant star in the act of devouring one of its planets. It could be a preview of what will happen to Earth five billion years from now.
Oct. 12, 2012
Earth is about to pass through a stream of debris from Halley's Comet, source of the annual Orionid meteor shower. Forecasters expect 25 meteors per hour when the shower peaks on Oct. 21st.
Sept. 28, 2012
A NASA spacecraft has recorded eerie-sounding radio emissions coming from our own planet. These beautiful "songs of Earth" could, ironically, be responsible for the proliferation of deadly electrons in the Van Allen Belts.
Sept. 27, 2012
Mars rover Curiosity has found evidence that a stream once ran vigorously across the area where the rover is now driving.