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Solar System, Sky Watching, Meteor Showers
Dec 30, 2016
Earth will pass through a stream of debris from comet 2003 EH1 on January 3, 2017, producing a shower of meteors known as the Quadrantids.
Sun, Solar System
Jul 28, 2014
July 28, 2014:  Every year, sky watchers and summertime campers circle on their calendars a few key August nights—the 11th, 12th and 13th.  These are the dates of the annual Perseid meteor shower, which rarely fails to please those who see it.This year they're adding a note: "supermoon."During the... Read More
Solar System
Jul 28, 2014
Which is brighter--a flurry of Perseid fireballs or a supermoon? Sky watchers will find out this August when the biggest and brightest full Moon of 2014 arrives just in time for the peak of the annual Perseid meteor shower.
ScienceCasts: Perseid Meteors vs the Supermoon
Solar System
Jul 28, 2014
July 28, 2014: NASA's Opportunity Mars rover, which landed on the Red Planet in 2004, now holds the off-Earth roving distance record after accruing 25 miles (40 kilometers) of driving, and is not far from completing the first extraterrestrial marathon. The previous record was held by the Soviet... Read More
Earth, Solar System
Jul 27, 2014
July 27, 2014:  Scientists using mission data from NASA’s Cassini spacecraft have identified 101 distinct geysers erupting on Saturn’s icy moon Enceladus.  Their analysis suggests it is possible for liquid water to reach from the moon’s underground sea all the way to its surface.... Read More
Universe
Jul 24, 2014
July 24, 2014:  The Universe is a big place, full of unknowns.  Astronomers using NASA's Chandra X-ray Observatory have just catalogued a new one. "I couldn't believe my eyes," says Esra Bulbul of the Harvard Center for Astrophysics.  "What we found, at first glance, could not be... Read More
Universe
Jul 24, 2014
July 24, 2014: As the European Space Agency's Rosetta probe approaches Comet 67P/Churyumov-Gerasimenko (67P) for an August rendezvous, the comet's core is coming into sharper focus. Today, ESA released a new set of images and a striking 3D model of 67P's nucleus.
Sun
Jul 23, 2014
July 23, 2014: If an asteroid big enough to knock modern civilization back to the 18th century appeared out of deep space and buzzed the Earth-Moon system, the near-miss would be instant worldwide headline news.Two years ago, Earth experienced a close shave just as perilous, but most newspapers... Read More
Universe
Jul 21, 2014
A mysterious X-ray signal from the Perseus cluster of galaxies, which researchers say cannot be explained by known physics, could be a key clue to the nature of Dark Matter.
ScienceCasts: Big Mystery in the Perseus Cluster
Universe
Jul 17, 2014
This news release is reprinted courtesy of the European Space Agency, which is leading the Rosetta mission to Comet 67P. July 17, 2014: The European Space Agency's Rosetta probe is approaching Comet 67P/Churyumov-Gerasimenko for a historic mission to orbit and land on the comet's... Read More
Solar System
Jul 14, 2014
July 14, 2014: In July 2015, NASA will discover a new world.  No one knows what to expect when the alien landscape comes into focus.  There could be icy geysers, towering mountains, deep valleys, even planetary rings.At this point, only one thing is certain:  Its name is Pluto.
Solar System
Jul 14, 2014
NASA's New Horizons spacecraft is only a year away from Pluto. Researchers are buzzing with anticipation as NASA prepares to encounter a new world for the first time in decades.
ScienceCasts: One Year to Pluto
Sun, Solar System
Jul 10, 2014
July 10, 2014: In June of last year, a full Moon made headlines.  The news media called it a "supermoon" because it was 14% bigger and 30% brighter than other full Moons of 2013.   Around the world, people went outside to marvel at its luminosity. If you thought one supermoon was... Read More
Solar System
Jul 8, 2014
The summer of 2014 will be bathed in moonlight as three perigee "supermoons" occur in consecutive months: July, August, September.
ScienceCasts: A Summer of Super Moons
Jul 8, 2014
July 8, 2014:  Fruit flies are bug eyed and spindly, they love rotten bananas, and, following orders from their pin-sized brains, they can lay hundreds of eggs every day. We have a lot in common.