Nov 30, 2016
Observations by NASA's IRIS spacecraft suggest that "heat bombs" are going off in the sun's outer atmosphere, helping to explain why the solar corona is so mysteriously hot.
Aug 8, 2013
An exotic class of exoplanets called "hot Jupiters" are even weirder than astronomers imagined. While these worlds may have Earth-like blue skies, new data show that they are anything but Earth-like.
Aug 5, 2013
Something big is happening on the sun. The sun's global magnetic field is about to flip, a sign that Solar Max has arrived.
Aug 5, 2013
August 5, 2013: Something big is about to happen on the sun. According to measurements from NASA-supported observatories, the sun's vast magnetic field is about to flip. "It looks like we're no more than 3 to 4 months away from a complete field reversal," says solar physicist... Read More
Aug 3, 2013
August 3, 2013: NASA's Hubble Space Telescope has detected a new kind of stellar blast called a kilonova, which happens when a pair of compact objects such as neutron stars crash together. Hubble observed the fading fireball from a kilonova last month, following a short gamma ray burst (... Read More
Sun, Solar System
Jul 26, 2013
July 26, 2013: In astronomy, there's nothing quite like a bright meteor streaking across the glittering canopy of a moonless night sky. The unexpected flash of light adds a dash of magic to an ordinary walk under the stars. New research by NASA has just identified the most... Read More
Jul 25, 2013
New research from NASA's Meteoroid Environment Office identifies the Perseids as the "fireball champion" of annual meteor showers. This year's Perseid display peaks on August 12th and 13th.
Jul 23, 2013
July 23, 2013: Color and black-and-white images of Earth taken by two NASA interplanetary spacecraft on July 19 show our planet and its moon as bright beacons from millions of miles away in space.
Earth, Sun, Solar System
Jul 22, 2013
July 22, 2013: One of the most shocking discoveries of the past 10 years is how much the landscape of Saturn's moon Titan resembles Earth. Like our own blue planet, the surface of Titan is dotted with lakes and seas; it has river channels, islands, mud, rain clouds and maybe even rainbows... Read More
Jul 19, 2013
Saturn's giant moon Titan is dotted with hydrocarbon lakes and seas that bear an uncanny resemblance to bodies of water on Earth. Strangely, though, Titan's lakes and seas have no waves.
Jul 17, 2013
July 17, 2013: Consider it the first interplanetary photobomb. On July 19th, NASA's Cassini spacecraft will photograph Earth through the rings of Saturn--and NASA wants you to jump into the shot.
Jul 15, 2013
July 15, 2013: NASA's Hubble Space Telescope has discovered a new moon orbiting the distant blue-green planet Neptune, the 14th known to be circling the giant planet.
Jul 15, 2013
July 15, 2013: High above our planet in the realm of satellites and space stations, the familiar rules of Earth do not apply. The midday sky is as black as night. There is no up and no down. Dropped objects do not fall, and hot air does not rise. Of all the strange things that... Read More
Jul 12, 2013
Drinking coffee in space is surprisingly tricky. Physicists researching the strange behavior of fluids onboard the International Space Station have invented a zero-g coffee cup to make the morning "cuppa Joe" a little easier to swallow.
Universe, Solar System
Jul 11, 2013
July 11, 2013: Astronomers working with NASA's Hubble Space Telescope have deduced the actual color of a planet orbiting another star 63 light-years away. The planet is HD 189733b, one of the closest exoplanets that can be seen crossing the face of its star, and its color is... Read More