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.
May 12, 2014
May 12, 2014: Over the years, as temperatures around the world have ratcheted upward, climate change researchers have kept a wary eye on one place perhaps more than any other: The West Antarctic Ice Sheet, and particularly the fastest melting part of it, the glaciers that flow into the... Read More
May 6, 2014
May 6, 2014: The head of NASA's Meteoroid Environment Office, Dr. Bill Cooke, often lets cameras do his sky watching for him. He and his colleagues operate a nationwide network of automated fireball observatories that capture anything that burns into Earth’s atmosphere. On the... Read More
May 5, 2014
Sky watchers in North America could witness a new meteor shower on May 24th when, for the first time, Earth passes through a cloud of dust from periodic comet 209P/LINEAR.
May 2, 2014
May 2, 2014: Last month (April 8-11), scientists, government officials, emergency planners and others converged on Boulder, Colorado, for NOAA's Space Weather Workshop—an annual gathering to discuss the perils and probabilities of solar storms. The current solar cycle is weaker... Read More
Apr 28, 2014
Two years ago, an intense solar storm narrowly missed Earth. If it had hit, researchers say, we could still be picking up the pieces.
Apr 26, 2014
Apr. 26, 2014: It's spring, and all around the northern hemisphere gardeners are planting seeds, tilling soil, and watering crops. Imagine a gardener's surprise, however, if water from the hose, instead of hitting the soil and sinking in, floated up to the sky. Or if the soil itself rose up... Read More
Universe, Solar System
Apr 25, 2014
April 25, 2014: NASA's Wide-field Infrared Survey Explorer (WISE) and Spitzer Space Telescope have discovered what appears to be the coldest "brown dwarf" known -- a dim, star-like body that surprisingly is as frosty as Earth's North Pole. Named "WISE J085510.83-071442.5," the brown dwarf... Read More
Apr 25, 2014
A new life form is taking root on the ISS, and its name is "Outregeous." The space-faring lettuce was delivered to the space station by a SpaceX Dragon capsule on April 20th.
Universe, Solar System
Apr 17, 2014
April 17, 2014: Using NASA's Kepler Space Telescope, astronomers have discovered the first Earth-size planet orbiting in the "habitable zone" of another star. The planet, named "Kepler-186f" orbits an M dwarf, or red dwarf, a class of stars that makes up 70 percent of the stars in the Milky... Read More
Apr 16, 2014
April 16, 2014: Earth's poles are separated by four oceans, six continents and more than 12,000 nautical miles. Turns out, that's not so far apart. New data from NASA's AIM spacecraft have revealed "teleconnections" in Earth's atmosphere that stretch all the way from... Read More
Apr 14, 2014
April 14, 2014: NASA's Cassini spacecraft has documented the formation of a small icy object within the rings of Saturn. Informally named "Peggy," the object may be a new moon. Details of the observations were published online today by the journal Icarus.
Apr 11, 2014
NASA's AIM spacecraft is discovering unexpected "teleconnections" in Earth's atmosphere that link weather and climate across vast distances.
Apr 10, 2014
April 10, 2014: Consider a pair of brothers, identical twins. One gets a job as an astronaut and rockets into space. The other gets a job as an astronaut, too, but on this occasion he decides to stay home. After a year in space, the traveling twin returns home and they reunite... Read More
Apr 7, 2014
Next year, with the assistance of the world's only twin astronauts, NASA will conduct an unprecedented experiment in human biology. While one twin remains on the ground, the other will circle Earth onboard the International Space Station for a full year. Will the twins still be identical when... Read More