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Star Blasts Planet With X-Rays
September 13, 2011 — A nearby star is pummeling a companion planet with a barrage of X-rays a hundred thousand times more intense than the Earth receives from the Sun. New data suggest that high-energy radiation is ... > full story -
Astronomers Find 50 New Exoplanets: Richest Haul of Planets So Far Includes 16 New Super-Earths
September 12, 2011 — Astronomers using the European Southern Observatory's world-leading exoplanet hunter HARPS have announced a rich haul of more than 50 new exoplanets, including 16 super-Earths, one of which orbits at ... > full story -
Astronomers Find Extreme Weather on an Alien World: Cosmic Oddball May Harbor a Gigantic Storm
September 12, 2011 — A University of Toronto-led team of astronomers has observed extreme brightness changes on a nearby brown dwarf that may indicate a storm grander than any seen yet on a planet. Because old brown ... > full story -
'Invisible' World Discovered: Planet Alternately Runs Late and Early in Its Orbit, Tugged by Second Hidden World
September 8, 2011 — Usually, running five minutes late is a bad thing since you might lose your dinner reservation or miss out on tickets to the latest show. But when a planet runs five minutes late, astronomers get ... > full story -
Hubble to Target 'Hot Jupiters'
September 7, 2011 — An international team of astronomers has set out on the largest program to date exploring the alien atmospheres of "Hot Jupiters" -- massive planets in solar systems far away from our ... > full story -
Pulsar Transformed Into Small Planet Made of Diamond Discovered in Milky Way
August 25, 2011 — A once-massive star that's been transformed into a small planet made of diamond: that's what astronomers think they've found in our Milky ... > full storyMore: -
Astronomers Find Ice and Possibly Methane on Snow White, a Distant Dwarf Planet
August 22, 2011 — Astronomers have discovered that the dwarf planet 2007 OR10 -- nicknamed Snow White -- is an icy world, with about half its surface covered in water ice that once flowed from ancient, slush-spewing ... > full story -
Darkest Known Exoplanet: Alien World Is Blacker Than Coal
August 11, 2011 — Astronomers have discovered the darkest known exoplanet -- a distant, Jupiter-sized gas giant known as TrES-2b. Their measurements show that TrES-2b reflects less than one percent of the sunlight ... > full story -
NASA's Juno Spacecraft Launches to Jupiter
August 5, 2011 — NASA's solar-powered Juno spacecraft lifted off from Cape Canaveral Air Force Station in Florida on Aug. 5, 2011 to begin a five-year journey to Jupiter. Juno's detailed study of the largest planet ... > full story -
Exoplanet Aurora: An out-of-This-World Sight
July 21, 2011 — Earth's aurorae, or Northern and Southern Lights, provide a dazzling light show to people living in the polar regions. Shimmering curtains of green and red undulate across the sky like a living ... > full story
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