Cosmic puzzle settled: Comets give us shooting stars
Suspicions that shooting stars come from comet dust, transformed into fiery streaks as they hit Earth's atmosphere, have been bolstered by Europe's Rosetta space mission, scientists reported Monday.
Rosetta data give closest-ever look at a comet
On Nov. 12, 2014, the European Space Agency's Rosetta mission made history when its Philae lander touched down on the surface of comet 67P/Churyumov-Gerasimenko. While this exciting technical achievement ...
Three nearly Earth-size planets found orbiting nearby star
NASA's Kepler Space Telescope, despite being hobbled by the loss of critical guidance systems, has discovered a star with three planets only slightly larger than Earth. The outermost planet orbits in the ...
Lost and found in space: Beagle 2 seen on Mars 11 years on (Update)
A British-built probe which vanished 11 years ago has been found on the surface of Mars, scientists said on Friday, solving an enduring mystery of space exploration.
Researchers find aldehydes in ices meant to simulate interstellar molecular clouds
Will the real monster black hole please stand up?
(Phys.org)—A new high-energy X-ray image from NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, has pinpointed the true monster of a galactic mashup. The image shows two colliding galaxies, collectively ...
NASA observatories take an unprecedented look into superstar Eta Carinae
Eta Carinae, the most luminous and massive stellar system within 10,000 light-years of Earth, is known for its surprising behavior, erupting twice in the 19th century for reasons scientists still don't understand. ...
Hubble discovers that Milky Way core drives wind at 2 million miles per hour
(Phys.org)—At a time when our earliest human ancestors had recently mastered walking upright, the heart of our Milky Way galaxy underwent a titanic eruption, driving gases and other material outward at ...
Mystery of where Earth's water came from deepens: Comet water is different
The mystery of where Earth's water came from got murkier Wednesday when some astronomers essentially eliminated one of the chief suspects: comets.
NASA launches new Orion spacecraft and new era
(AP)—NASA's new Orion spacecraft zoomed toward a high point of 3,600 miles (5,800 kilometers) on an orbital test flight Friday, ushering in a new era of exploration that could one day put people on Mars.
Study finds a barrage of small impacts likely erased much of the Earth's primordial atmosphere
Today's atmosphere likely bears little trace of its primordial self: Geochemical evidence suggests that Earth's atmosphere may have been completely obliterated at least twice since its formation more than ...
Dawn spacecraft captures best-ever view of dwarf planet
NASA's Dawn spacecraft has returned the sharpest images ever seen of the dwarf planet Ceres. The images were taken 147,000 miles (237,000 kilometers) from Ceres on Jan. 25, and represent a new milestone for ...
Big asteroid that skimmed Earth has its own moon, NASA says
An unusually large asteroid that just skimmed by Earth had its own moon, NASA said Tuesday as the US space agency released its first radar images of the flyby.
Boeing, SpaceX will beat Russia on price for astronaut rides (Update 2)
NASA expects to save millions of dollars sending astronauts to the International Space Station, once its commercial crew program starts flying in a couple of years.