News tagged with astronomical units
Comet Hartley 2 leaves a bumpy trail
New findings from NEOWISE, the asteroid- and comet-hunting portion of NASA's Wide-field Infrared Survey Explorer mission, show that comet Hartley 2 leaves a pebbly trail as it laps the sun, dotted with grains ...
Space & Earth / Space Exploration
Jul 15, 2011 |
5 / 5 (1) |
0
The X-Ray Puzzle of Protostellar Jets
(PhysOrg.com) -- A new star develops by accreting material from a circumstellar disk; both in turn are embedded in a much larger, more nearly spherical envelope of in-falling dust and gas. The protostar is ...
Jun 22, 2011 |
4.9 / 5 (8) |
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Duo of big telescopes probes the depths of binary star formation
A team of researchers from four Japanese universities (Kobe, Saitama, Osaka, and Tokyo) has been able to delineate the intricate structure of the circumbinary disk that surrounds a young binary star system ...
Jun 21, 2011 |
5 / 5 (2) |
2
Imaging a multiple star
(PhysOrg.com) -- Multiple stars - binaries, triplets, or perhaps more stars, that orbit each other - are unique laboratories into the interactions between stars and their early environments.
Apr 18, 2011 |
not rated yet |
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NASA's Spitzer discovers time-delayed jets around young star
(PhysOrg.com) -- Astronomers have discovered that two symmetrical jets shooting away from opposite sides of a blossoming star are experiencing a time delay: knots of gas and dust from one jet blast off four-and-a-half ...
Apr 05, 2011 |
4.8 / 5 (4) |
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X-Ray observations of an extrasolar planetary system
(PhysOrg.com) -- The majority of extra-solar planets (about 278 of them) are more massive than Jupiter. About 20% of this majority group orbit their stars at a distances of less than one-tenth of an astronomical ...
Oct 22, 2010 |
4.7 / 5 (11) |
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Massive Stars: Good Targets for Planet Hunts, Bad Targets for SETI
(PhysOrg.com) -- Most searches for planets around other stars, also known as exoplanets, focus on Sun-like stars. Those searches have proven successful, turning up more than 400 alien worlds. However, Sun-like ...
Jan 06, 2010 |
4.8 / 5 (9) |
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The Edge of a Black Hole
The existence of black holes is one of the most amazing and bizarre predictions of Einstein's theory of gravity. Despite his original misgivings about their reality, massive black hole holes are today believed ...
Aug 18, 2009 |
4 / 5 (28) |
14
Mass Loss Leaves Close-In Exoplanets Exposed to the Core
(PhysOrg.com) -- An international team of scientists has found that giant exoplanets orbiting very close to their stars could lose a quarter of their mass during their lifetime. The team found that planets ...
Apr 21, 2009 |
3.3 / 5 (8) |
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