News tagged with planetary formation
Astronomers discover a rare stellar disk of quartz dust
A research team of Japanese astronomers led by Dr. Hideaki Fujiwara (Subaru Telescope) has discovered a main-sequence star that is surrounded by a rare disk of quartz dust. Collisions of planetesimals, building ...
May 05, 2012 |
5 / 5 (12) |
4
|
Image: Hubble peeks inside a stellar cloud
(Phys.org) -- These bright stars shining through what looks like a haze in the night sky are part of a young stellar grouping in one of the largest known star formation regions of the Large Magellanic Cloud ...
Apr 23, 2012 |
5 / 5 (4) |
8
|
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
|
A planetary system from the early Universe
A group of European astronomers has discovered an ancient planetary system that is likely to be a survivor from one of the earliest cosmic eras, 13 billion years ago. The system consists of the star HIP 11952 ...
Mar 27, 2012 |
4.5 / 5 (13) |
13
|
A universal law for star formation
(PhysOrg.com) -- Star formation is studied by astronomers not only because it produces new stars and planetary systems. It also generates copious amounts of ultraviolet light that heats dust which in turn ...
Jan 09, 2012 |
4.7 / 5 (3) |
0
|
From the Earth to the Moon: Resolving estimates of proto-Earth accretion with lunar-forming impact
(PhysOrg.com) -- One of the more challenging fields of scientific inquiry is planetary formation – and most relevant is that of our own Earth and Moon. The current view, based on chronometry (scientific ...
Nov 14, 2011 |
5 / 5 (8) |
16
|
Rocky planets could have been born as gas giants
When NASA announced the discovery of over 1,200 new potential planets spotted by the Kepler Space Telescope, almost a quarter of them were thought to be Super-Earths. Now, new research suggests that these ...
Sep 16, 2011 |
4.8 / 5 (11) |
38
New class of stellar explosions discovered
They're bright and blue-and a bit strange. They're a new type of stellar explosion that was recently discovered by a team of astronomers led by the California Institute of Technology (Caltech). Among the most ...
Jun 08, 2011 |
4.8 / 5 (14) |
12
|
Want to make planets? Better hurry
Currently, astronomers have two competing models for planetary formation. In one, the planets form in a single, monolithic collapse. In the second, the core forms first and then slowly accretes gas and dust. ...
May 24, 2011 |
5 / 5 (1) |
18
Flipping hot Jupiters: Why some planets orbit the wrong way
(PhysOrg.com) -- In the last few years astronomers have observed that in some extrasolar systems the star is spinning one way and the planet, a "hot Jupiter," is orbiting the star in the opposite direction. ...
May 11, 2011 |
4.7 / 5 (10) |
23
|
Oxygen isotope analysis tells of the wandering life of a dust grain 4.5 billion years ago
Scientists have performed a micro-probe analysis of the core and outer layers of a pea-sized piece of a meteorite some 4.57 billion years old to reconstruct the history of its formation, providing the first ...
Mar 03, 2011 |
4 / 5 (6) |
13
|
Birth of a baby planet
(PhysOrg.com) -- University of Sydney astronomer, Professor Peter Tuthill, is one of an international team of astronomers who have announced a major step forward in the quest to find planets in orbit around ...
Mar 02, 2011 |
5 / 5 (9) |
4
|
Back to the roots of the solar system
(PhysOrg.com) -- Planets form in disks of dust and gas that surround young stars. A look at the birth places means a journey into the past of the earth and its siblings. Now, astronomers have been able to ...
Feb 17, 2011 |
4.8 / 5 (4) |
5
|
Shining starlight on the dark cocoons of star birth
(PhysOrg.com) -- Astronomers have discovered a new, cosmic phenomenon, termed "coreshine," which is revealing new information about how stars and planets come to be.
Sep 23, 2010 |
4.7 / 5 (6) |
1
|
The hot atmosphere of Venus might cool its interior: study
The heat in the atmosphere of Venus, induced from a strong greenhouse warming, might actually have a cooling effect on the planet's interior. This counter-intuitive theory is based on calculations from a new ...
Space & Earth / Space Exploration
Sep 21, 2010 |
3.8 / 5 (9) |
0
|
