Science News

Science@NASA

 

Connect to ScienceCasts

ScienceCasts Narrators

NASA's Sounding Rockets Poster
Sun, Earth’s Space Environment
May 16, 2017
Sounding rocket missions can often be the key to getting a quick answer to a tightly focused science question.
Solar System
Aug 25, 2014
August 25, 2014:  NASA’s Pluto-bound New Horizons spacecraft has traversed the orbit of Neptune. This is its last major crossing en route to becoming the first probe to make a close encounter with distant Pluto on July 14, 2015.
Universe
Aug 18, 2014
August 18, 2014:  Barely 30 years ago, the only planets astronomers had found were located right here in our own solar system.  The Milky Way is chock-full of stars, millions of them similar to our own sun.  Yet the tally of known worlds in other star systems was exactly zero. What... Read More
Universe
Aug 18, 2014
Astronomers are not only discovering planets around distant suns, they are also starting to measure those worlds with astonishing precision. The diameter of a super-Earth named Kepler 93B is now known to within an accuracy of 148 miles.
ScienceCasts: Sizing up an Exoplanet
Universe, Sun, Solar System
Aug 15, 2014
August 15, 2014:  Sleeping late is one of the simple pleasures of summer vacation.  This week, waking up early will be a pleasure, too.
Universe
Aug 15, 2014
Wake up early in mid-August to see Venus and Jupiter shining side-by-side.
ScienceCasts: Beautiful Conjunction
Solar System
Aug 12, 2014
August 12, 2014:  On October 19, 2014, Comet Siding Spring will pass by Mars only 139,500 km away--which would be like a comet passing about 1/3 of the distance between Earth and the Moon. The nucleus of the comet won't hit Mars, but there could be a different kind of collision. "We hope to... Read More
Universe
Aug 6, 2014
August 6, 2014:  Today, after a decade-long journey chasing its target, the European Space Agency's Rosetta probe, carrying three NASA instruments, became the first spacecraft to rendezvous with a comet, 67P/Churyumov-Gerasimenko. "After 10 years, five months and four... Read More
Solar System
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 effects. Whatever happens, NASA's fleet of Mars satellites will have a ringside seat.
ScienceCasts: Mars vs Comet Siding Spring
Universe
Aug 2, 2014
This news release is reprinted courtesy of the European Space Agency, which is leading the Rosetta mission to Comet 67P.
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
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: "... 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
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... 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... Read More