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Updated: 1 hour 52 min ago

New observations explain why Milky Way-like galaxies are so common

1 hour 38 min ago
Researchers have found direct evidence that merging galaxies can form disk galaxies instead of elliptical galaxies and that this outcome is in fact quite common.
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Chandra X-ray Observatory finds planet that makes star act deceptively old

17 hours 38 min ago
This discovery shows how a massive planet can affect the behavior of its parent star.
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NASA chooses American companies to transport U.S. astronauts to space station

Tue, 09/16/2014 - 19:10
The selection of Boeing and SpaceX will return launches to America.
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Astronomers release most detailed catalog ever made of the visible Milky Way

Tue, 09/16/2014 - 19:00
A team assembled the catalog in a 10-year program using the Isaac Newton Telescope (INT) on La Palma in the Canary Islands.
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Bright clumps in Saturn ring now mysteriously scarce

Tue, 09/16/2014 - 03:00
Researchers hypothesize that the brightest clumps in the F ring are caused by repeated impacts into its core by small moonlets up to about 3 miles (5 kilometers) wide.
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“Hot Jupiters” provoke their own host suns to wobble

Mon, 09/15/2014 - 18:30
Although the planet’s mass is only one-thousandth of the mass of the Sun, the stars in these other solar systems are being affected by these planets and making the stars themselves act in a crazy way.
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"J" marks the spot for Rosetta's lander

Mon, 09/15/2014 - 03:00
Rosetta’s lander Philae will target Site J, an intriguing region on Comet 67P that offers unique scientific potential with hints of activity nearby and minimum risk to the lander.
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Mars Curiosity rover arrives at martian mountain

Fri, 09/12/2014 - 18:00
Curiosity’s trek up Mount Sharp will begin with an examination of the mountain’s lower slopes.
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Gaia discovers its first supernova

Fri, 09/12/2014 - 03:00
This powerful event, now named Gaia14aaa, took place in a distant galaxy some 500 million light-years away.
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Mysterious quasar sequence explained

Thu, 09/11/2014 - 03:00
New work shows that most observed quasar phenomena can be unified by quantifying how efficiently the black hole is being fed and knowing the viewing orientation from Earth.
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Watch coverage of a significant flare surging off the Sun

Thu, 09/11/2014 - 03:00
A solar flare erupted from a sunspot designated Active Region 2158 that produced an Earth-directed coronal mass ejection.
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First evidence for water ice clouds found outside solar system

Wed, 09/10/2014 - 18:30
Water ice clouds exist on our gas giant planets but have not been seen beyond the planets orbiting our Sun until now.
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Hubble finds supernova companion star after two decades of searching

Wed, 09/10/2014 - 03:00
The discovery confirms a long-held theory that the supernova, dubbed SN 1993J, occurred inside what is called a binary system, where two interacting stars caused a cosmic explosion.
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Interactive dark matter could explain Milky Way’s missing satellite galaxies

Tue, 09/09/2014 - 18:00
Scientists think clumps of dark matter that emerged from the early universe trapped the intergalactic gas needed to form stars and galaxies.
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Scientists find evidence of “diving” tectonic plates on Jupiter’s moon Europa

Tue, 09/09/2014 - 03:00
This is the first sign of this type of surface-shifting geological activity on a world other than Earth.
Categories: Astronomy Headlines

Evidence of forming planet discovered 335 light-years from Earth

Mon, 09/08/2014 - 19:00
The new planet would be an uninhabitable gas giant at least three times the size of Jupiter, and the distance from the star would be about the same distance that Saturn is from the Sun.
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Half of all exoplanet host stars are binaries

Mon, 09/08/2014 - 03:00
In some cases, the planet orbits both stars, while in others the planet orbits one of the pair.
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Closest-ever comet orbiter streams data from bi-lobed “rubber ducky”

Fri, 09/05/2014 - 14:30
Rosetta’s initial far-ultraviolet observations show a surprisingly unreflective surface and lack of water-ice patches on comet 67P.
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Asteroid to safely pass close to Earth on Sunday

Fri, 09/05/2014 - 03:00
At the time of closest approach, the 60-foot (20m) object will be about one-tenth the distance from Earth to the Moon.
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Newly identified galactic supercluster is home to the Milky Way

Thu, 09/04/2014 - 17:30
This discovery clarifies the boundaries of our galactic neighborhood and establishes previously unrecognized linkages among various galaxy clusters in the local universe.
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