Jan. 22, 2014
Scientists using the Herschel space observatory have made the first definitive detection of water vapor on the largest and roundest object in the asteroid belt, dwarf planet Ceres.
Jan. 21, 2014
NASA scientists say 2013 tied with 2009 and 2006 for the seventh warmest year since 1880, continuing a long-term trend of rising global temperatures.
Jan. 14, 2014
Eight years after it left Earth, NASA's New Horizons spacecraft is approaching Pluto. The encounter begins less than a year from now.
Jan. 10, 2014
Astronauts on the ISS are experimenting with a form of water that has a strange property: it can help start fire. This fundamental physics investigation could have down-to-Earth benefits such as clean-burning municipal waste disposal and improved saltwater purification.
Jan. 10, 2014
Dec. 23, 2013
A vast bank of electric-blue clouds has appeared over Antarctica, signaling the start of the season for southern hemisphere noctilucent clouds.
Dec. 13, 2013
The Geminid meteor shower is underway. Forecasters say the best time to look is during the dark hours before sunrise on Saturday morning, Dec. 14th. Dark-sky observers could see dozens of bright shooting stars.
Dec. 10, 2013
Earth-orbiting satellites have found the coldest place on Earth. No surprise: It's in Antarctica. The coldest of the cold temperatures dropped to minus 135.8 F (minus 93.2 C) -- several degrees below the previous record.
Dec. 4, 2013
In full view of the NASA-ESA solar physics fleet, Comet ISON disintegrated when it flew through the sun's atmosphere on Thanksgiving Day. Researchers are still marveling at the images and the scientific data they contain.
Nov. 27, 2013
"Rock comet" 3200 Phaethon has sprouted a tail, confirming that the mysterious object is the source of the annual Geminid meteor shower.