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Three questions about Comet ISON
Get the facts about comet ISON. The manager of NASA's Near-Earth Object Program Office shares the low-down on the stellar object's holiday travel plans.
November 26, 2013
In the U.S. East? Look for commuting problems due to storm
If you have travel plans to U.S. East for Thanksgiving, look for flight delays, possible cancellations, and longer commutes. Weather will go downhill throughout the U.S. East on November 26-27, 2013.
November 26, 2013
This is not Comet ISON, but it could be
There are rumors today that Comet ISON is breaking up as it nears its November 28 closest point to the sun. Here's what a disintegrating comet looks like.
November 26, 2013
Mach 1000 shock wave lights supernova remnant
The appearance of this "new star" stunned those who thought the heavens were constant and unchanging. At its brightest, the supernova rivaled Venus before fading from sight a year later.
November 25, 2013
Rain as acidic as lemon juice may have contributed to ancient mass extinction
MIT researchers find that rain as acidic as lemon juice may have contributed to massive die-offs on land 252 million years ago.
November 25, 2013
Two magma oceans deep inside young Earth, study suggests
A new study suggests that there may have been two magma oceans separated by a layer of crystalline material in the mantle during Earth’s formative period.
November 25, 2013
Comet ISON nears the sun
Comet ISON is now inside the orbit of Mercury. It's on the last leg of its journey sunward, a journey that began at least a million years ago.
November 23, 2013
Colossal new predatory dino terrorized early tyrannosaurs
Named after a cannibalistic man-eating monster from a native American legend, this newly discovered large dinosaur had its reign of terror in what is now Utah.
November 22, 2013
Satellite trio to explore the Earth’s magnetic field
"Improving the exploration of the magnetic field's function and recording space weather data more accurately allows us to draw conclusions for life on our planet." - Johanna Wanka
November 22, 2013
