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Cassini prepares for last look at Titan
Even as the long-lived Cassini spacecraft gears up for its last moments at Saturn, it's preparing for a final long-distance look at Titan, Saturn's large moon, on September 11.
August 17, 2017
Studying sun’s atmosphere on eclipse day
Monday's total solar eclipse will give scientists a rare opportunity to study the lower regions of the sun’s corona. Here's what NASA scientists will be investigating.
August 17, 2017
Science balloons soaring on new missions
NASA's Balloon Program is preparing new missions, including one designed to investigate the birth of our universe.
August 15, 2017
Cassini’s final 5 starts August 14
Today, as part of its Grand Finale, the Cassini spacecraft begins its final 5 orbits, a set of ultra-close sweeps through Saturn’s upper atmosphere.
August 14, 2017
Well, hello! 4 Earth-sized planets found at nearest sunlike star
The nearest sunlike star is Tau Ceti, only 12 light-years away. It's now known to have at least 4 planets orbiting it, with relatively small masses, tantalizingly close to Earth's mass.
August 10, 2017
Is 2014 MU69 composed of 2 objects?
The next target for the New Horizons spacecraft - which passed Pluto in 2015 - reveals itself, intriguingly, to be a possible contact binary, that is, 2 objects in 1.
August 6, 2017
Total eclipse of sun: August 21, 2017
All you need to know about the 1st total solar eclipse visible from the contiguous U.S. since 1979, from eclipse master Fred Espenak.
August 6, 2017
After 40 years, Voyager still reaching for stars
"Few missions can ever match the achievements of the Voyager spacecraft during their four decades of exploration."
August 4, 2017
Sun’s core rotates 4x faster than surface
Eureka! After decades of puzzling about whether the sun's core spins faster than its surface, astronomers can now measure it.
August 2, 2017
Lots of water inside the moon?
Researchers have detected widespread water within ancient volcanic deposits on the moon.
August 2, 2017
