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Spitzer Discovers Young Stars With a 'Hula Hoop'
Astronomers using NASA's
Spitzer Space Telescope have
spotted a young stellar
system that "blinks" every
93 days. Called YLW 16A, the
system likely consists of
... > full story
Planetary 'Runaway Greenhouse' More Easily Triggered, Research Shows
It might be easier than
previously thought for a
planet to overheat into the
scorchingly uninhabitable
"runaway greenhouse" stage,
... > full story
NASA's Chandra Sees Eclipsing Planet in X-Rays for First Time
For the first time since
exoplanets, or planets
around stars other than the
sun, were discovered almost
20 years ago, X-ray
observations have detected
... > full story
Pulsating Star Sheds Light on Exoplanet
Astronomers have devised a
way to measure the internal
properties of stars —-
a method that offers more
accurate assessments of
their orbiting planets. ... > full story
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A Warmer Planetary Haven Around Cool Stars, as Ice Warms Rather Than Cools
July 19, 2013 — In a bit of cosmic irony, planets orbiting cooler stars may be more likely to remain ice-free than planets around hotter stars. This is due to the interaction of a star’s light with ice and ... > full story -
Snow in an Infant Solar System: A Frosty Landmark for Planet and Comet Formation
July 18, 2013 — A snow line has been imaged in a far-off infant solar system for the very first time. The snow line, located in the disc around the Sun-like star TW Hydrae, promises to tell us more about the ... > full story -
In the Zone: How Scientists Search for Habitable Planets
July 17, 2013 — There is only one planet we know of, so far, that is drenched with life. That planet is Earth, and it has all the right conditions for critters to thrive on its surface. Do other planets beyond our ... > full story -
Disks Don't Need Planets to Make Patterns, NASA Study Shows
July 13, 2013 — Many young stars known to host planets also possess disks containing dust and icy grains, particles produced by collisions among asteroids and comets also orbiting the star. These debris disks often ... > full story -
Hubble Finds a True Blue Planet: Giant Jupiter-Sized Planet Located 63 Light-Years Away
July 11, 2013 — Astronomers using NASA's Hubble Space Telescope have deduced the actual visible-light color of a planet orbiting another star 63 light-years away. If seen directly the planet, known as HD 189733b, ... > full story -
Variation Between Hot Extrasolar Planet Atmospheres Revealed
July 5, 2013 — First results from the analysis of eight 'hot Jupiter' exoplanets suggest that winds and clouds play an important role in the atmospheric make up of these exotic ... > full story -
Astronomer Uncovers the Hidden Identity of an Exoplanet
July 1, 2013 — Hovering about 70 light-years from Earth –- that's "next door" by astronomical standards –– is a star astronomers call HD 97658, which is almost bright enough to see with the naked ... > full story -
Cloud Behavior Expands Habitable Zone of Alien Planets
July 1, 2013 — A new study that calculates the influence of cloud behavior on climate doubles the number of potentially habitable planets orbiting red dwarfs, the most common type of stars in the ... > full story -
Gas-Giant Exoplanets Cling Close to Their Parent Stars
June 27, 2013 — Gemini Observatory's Planet-Finding Campaign finds that, around many types of stars, distant gas-giant planets are rare and prefer to cling close to their parent stars. The impact on theories of ... > full story -
First Transiting Planets in a Star Cluster Discovered
June 26, 2013 — All stars begin their lives in groups. Most stars are born in small groups that quickly fall apart. Others form in huge, dense swarms, where stars jostle with thousands of neighbors while strong ... > full story
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