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24 June 2015, 07:00 AM ET
Venus' volcanoes are likely still spewing out lava, a new study suggests.The European Space Agency's Venus Express spacecraft observed temperatures spiking by several hundred degrees Fahrenheit in some spots on the planet's surface.
24 June 2015, 07:00 AM ET
Alien worlds with helium skies might be fairly common throughout the universe, researchers say. Indeed, one such helium-rich exoplanet might have already been discovered just 33 light-years from Earth.
24 June 2015, 07:00 AM ET
While previous research had confirmed the presence of beautiful "southern lights" on Mars, the new study predicts for the first time that the auroras of the Red Planet may be visible to the human eye.
23 June 2015, 07:22 PM ET
To find dark matter, try peering into dwarf galaxies.
23 June 2015, 07:05 PM ET
Astromice are helping people chart the course to Mars, and revealing that voyage's risks.
23 June 2015, 05:31 PM ET
Mercury is a difficult object to spot, because it's always clinging closely to the sun’s apron strings. So you might be excused for missing its brief appearance this week in the dawn skies.
23 June 2015, 05:05 PM ET
NASA's New Horizons spacecraft has spotted a strange dark patch at the pole of Pluto's big moon Charon, further whetting researchers' appetites ahead of the probe's epic flyby of the dwarf planet system next month.
23 June 2015, 03:44 PM ET
Composer James Horner, who wrote the scores for "Aliens," "Apollo 13," "Avatar," "Star Trek II: The Wrath of Khan" and many other high-profile films, died Monday (June 22) in a plane crash, according to media reports.
23 June 2015, 02:14 PM ET
Kazakh cosmonaut Aidyn Aimbetov will fly to the International Space Station in the fall, filling the seat earlier reserved for British soprano Sarah Brightman. Brightman's backup Satoshi Takamatsu will wait for a later flight.
23 June 2015, 11:34 AM ET
Auroras reached as far south as Philadelphia yesterday (June 22) after a massive burst of particles was ejected from the sun and pummeled Earth's atmosphere. This strong solar storm continues to rage, and auroras are expected be visible again tonight.
23 June 2015, 09:06 AM ET
Images captured between May 29th and June 18th, 2015 resolve patches on the icy dwarf's surface and suggest that one of Charon’s poles might be significantly less bright than the bulk of the moon.
23 June 2015, 07:00 AM ET
Jupiter may have traveled throughout the early solar system, transporting material that eventually formed the terrestrial planets, including Earth, a new study suggests.
23 June 2015, 07:00 AM ET
During its 13.5 years in orbit, Mars Odyssey has spotted the first evidence of water ice on Mars, mapped the entire Red Planet surface in vivid detail, and coordinated the Spirit, Opportunity and Curiosity rovers' communications with Earth.
23 June 2015, 07:00 AM ET
NASA hopes to send robotic submarines into Europa's subsurface ocean someday, and researchers are currently testing out some prototypes in Antarctica.
22 June 2015, 09:47 PM ET
The Big Bang Theory is the leading explanation about how the universe began.
22 June 2015, 06:15 PM ET
A video released last week by the private spaceflight company Blue Origin featuring a former NASA astronaut offers a tantalizing look at the private space trips the company plans to offer.
22 June 2015, 05:57 PM ET
Construction of the Thirty Meter Telescope (TMT) on Hawaii's Mauna Kea volcano, which was halted in April after a series of protests, will resume on Wednesday (June 24), project representatives said in a statement issued over the weekend.
22 June 2015, 05:30 PM ET
The runway in Florida where space shuttles touched down for nearly 30 years has a new commercial mission. NASA handed over its historic Shuttle Landing Facility at Kennedy Space Center to Space Florida to advance a new era of spaceflight.
22 June 2015, 04:47 PM ET
A monster black hole in the heart of a barred spiral galaxy called NGC 1097 has the mass of 140 million suns, according to new measurements. A vivid video by the National Radio Astronomy Observatory describes how researchers "weighed" the black hole.
22 June 2015, 02:51 PM ET
The new image resolves Ceres' strange spots into a cluster comprised of several patches, some of which were not visible in previous photos. But it doesn't solve the mystery of the spots' origin and composition.
22 June 2015, 08:36 AM ET
A new 'green-lighted' mission to the Jupiter moon will use cameras, spectroscopy and other instruments to measure the surface during several years of fly-bys.
22 June 2015, 07:00 AM ET
Steely-nerved test pilots were the first men in space, but that isn't what you always want on a longer trip. During the recent World Science Festival last month, astronauts and doctors talked about how astronaut culture has changed over the years.
22 June 2015, 07:00 AM ET
The first color "movies" of Pluto as seen by NASA's New Horizons spacecraft reveal the sheer strangeness of the orbital dance between the dwarf planet and its largest moon Charon.
21 June 2015, 11:44 AM ET
From a breathtaking view of Saturn's Dione to the 'Spit of Satan,' check out these amazing space images.
21 June 2015, 11:33 AM ET
Crashed comet lander Philae phones home. A dead satellite falls to Earth. Mars shows both methane-laced meteorites and a possibly icy past, and the moon's dust gets a source in the best of this week's space news.
21 June 2015, 08:25 AM ET
Early summer is an "in-between" time in the skies. The realm of the galaxies has moved off to the west, but the summer Milky Way has not yet arrived. This is the best time of year to observe globular clusters and double stars.
21 June 2015, 07:21 AM ET
Dads everywhere will celebrate Father's Day today (June 21), and the Earth is joining the fun this year with the summer solstice, kicking off the first day of the northern summer.
21 June 2015, 06:20 AM ET
A public astronomy event at the Intrepid air and Space Museum in New York City featured a talk by Mason Peck, director of Cornell University’s Space System’s Design Studio and NASA’s former chief technologist.
20 June 2015, 08:26 AM ET
A spacecraft that will study Europa, one of Jupiter's icy moons with a potentially habitable environment, just passed a major hurdle.
20 June 2015, 12:46 AM ET
Globular clusters are densely packed, spherical collections of ancient stars. They contain hundreds of thousands, and sometimes millions, of stars.
19 June 2015, 09:59 PM ET
In new imagery of the dwarf planet taken from May 29th to June 3rd, 2015, its "near-true color" is revealed. Charon, also in view, is grey. The images are presented in a 'barycentric view,' with both Pluto and Charon in motion, and a 'Pluto-centric'
19 June 2015, 09:46 PM ET
What better place to hold a star party than the rims of the Grand Canyon?