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Aug 6, 2014
Comet Siding Spring is about to fly historically close to Mars. The encounter could spark Martian auroras, a meteor shower, and other unpredictable...
Jul 1, 2014
A new species is about to join astronauts on the International Space Station: Drosophila melanogaster, also known as the "fruit fly." ...
May 12, 2014
A new study led by NASA researchers shows that half-a-dozen key glaciers in the West Antarctic Ice Sheet are in irreversible decline. The melting of...
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...
Mar 20, 2014
A total lunar eclipse on April 15th marks the beginning of a remarkable series of eclipses all visible from North America.
Feb 6, 2014
California is experiencing a historic drought--by some measures the deepest in more than 100 years. NASA researchers are investigating a number of...
Nov 27, 2013
"Rock Comet" 3200 Phaethon has sprouted a tail, proving that the mysterious object is the source of the annual Geminid meteor shower.
Oct 24, 2013
Astronauts aren't the only ones who need to worry about solar flares. Ordinary air travelers can also be exposed to significant doses of radiation...
Sep 15, 2013
The full Moon closest to the northern autumnal equinox is coming this week. Don't miss the Harvest Moon.
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.