Researchers reveal unseen planet by its gravity
More than a 150 years ago, before Neptune was ever sighted in the night sky, French mathematician Urbain Le Verrier predicted the planet's existence based on small deviations in the motion of Uranus. In a ...
May 10, 2012 |
4.9 / 5 (14) |
0
|
Ultra-cool companion helps reveal giant planets
(Phys.org) -- An international team of astronomers led by David Pinfield of the University of Hertfordshire has found a brown dwarf that is more than 99% hydrogen and helium. Described as ultra-cool, it has ...
May 10, 2012 |
4.8 / 5 (6) |
0
|
Massive black holes halt star birth in distant galaxies
Astronomers, using the European Space Agency's (ESA) Herschel Space Observatory, have shown that the number of stars that form during the early lives of galaxies may be influenced by the massive black holes ...
May 09, 2012 |
4.6 / 5 (7) |
34
|
When stellar metallicity sparks planet formation
New research predicts the criteria needed for Earth-like planets to form around a star that have one-tenth the metallicity of our Sun. If researchers find small, rocky planets orbiting stars with lower metallicity, ...
Apr 10, 2012 |
5 / 5 (1) |
9
|
In distance space, a water world: Hubble reveals a new class of extrasolar planet
(PhysOrg.com) -- An international team of astronomers led by Zachory Berta of the Harvard-Smithsonian Center for Astrophysics (CfA) made the observations of the planet GJ 1214b.
Feb 21, 2012 |
4.8 / 5 (24) |
24
|
The survivors of a 13 billion year old massacre
(PhysOrg.com) -- Our Milky Way galaxy is surrounded by some 200 compact groups of stars, containing up to a million stars each. At 13 billion years of age, these globular clusters are almost as old as the ...
Feb 14, 2012 |
4.8 / 5 (8) |
1
|
Astronomy team discovers nearby dwarf galaxy
(PhysOrg.com) -- A team led by UCLA research astronomer Michael Rich has used a unique telescope to discover a previously unknown companion to the nearby galaxy NGC 4449, which is some 12.5 million light years ...
Feb 08, 2012 |
4.3 / 5 (8) |
5
|
How well can astronomers study exoplanet atmospheres?
Exoplanet discoveries are happening at a frenetic pace, and some of the latest newly discovered worlds are sometimes described as “Earth-Like” and “potentially habitable.”
Jan 31, 2012 |
not rated yet |
0
Kepler announces 11 planetary systems hosting 26 planets
(PhysOrg.com) -- NASA's Kepler mission has discovered 11 new planetary systems hosting 26 confirmed planets. These discoveries nearly double the number of verified Kepler planets and triple the number of stars ...
Jan 26, 2012 |
5 / 5 (24) |
7
|
How common are terrestrial, habitable planets around sun-like stars?
Once again news from the Kepler mission is making the rounds, this time with a research paper outlining a theory that Earth-like planets may be more common around class F, G and K stars than originally expected.
Sep 28, 2011 |
4.7 / 5 (6) |
8
Homeless supernovae
In a post earlier this month, we looked at a team of astronomers searching for stars that were on ejected from their birthplaces in clusters. These stars could receive the needed kick from a gravitational swing ...
Sep 27, 2011 |
5 / 5 (2) |
2
Hunting for transits of Super-Earth GJ 581e
(PhysOrg.com) -- An international team of astronomers has ruled out transits of a water-rich or hydrogen-helium atmosphere planet for Gliese 581e. The host star itself is relatively quiet which means good ...
Jun 02, 2011 |
4.9 / 5 (11) |
2
|
Planets that have no stars: New class of planets discovered
(PhysOrg.com) -- University of Notre Dame astronomer David Bennett is co-author of a new paper describing the discovery of a new class of planets -- dark, isolated Jupiter-mass bodies floating alone in space, ...
May 18, 2011 |
4.7 / 5 (30) |
52
|
The shocking environment of hot Jupiters
(PhysOrg.com) -- Jupiter-like worlds around other stars push shock waves ahead of them, according to a team of UK astronomers. Just as the Earth's magnetic "bow-shock" protects us from the high-energy solar ...
Apr 19, 2011 |
4.7 / 5 (3) |
0
|
The rose-red glow of star formation
The vivid red cloud in this new image from ESO's Very Large Telescope is a region of glowing hydrogen surrounding the star cluster NGC 371. This stellar nursery lies in our neighboring galaxy, the Small Magellanic ...
Mar 30, 2011 |
4 / 5 (3) |
1
|
