Researchers at the American space agency have recently discovered a galaxy that they caught in the middle of its star-forming phase. This is extremely rare, given that most of the galaxies astronomers have observed thus far are actually very old, and therefore produce only small amounts of new stars. The team who mad... |
19 August 2010
02:48 GMT |
 |
|
According to a new set of data supplied by scientists at the Yale University, supermassive black holes at the center of galaxies are not responsible for the shutting down of star formation processes, because these processes start way before the black hole reaches its maximum size and begins to influence everything ar... |
23 January 2009
06:06 GMT |
|
|
Nothing can escape the gravitational pull of black holes, not even light; they draw in every bit of matter and energy passing beyond their event horizon. According to a new study, some of the heaviest black holes in the universe, weighing up to several billion solar masses and found in the cores of active galactic nu... |
5 June 2008
03:45 GMT |
|
|
Why study the star formation process in individual galaxies when the debris left behind by colliding galaxies makes matters so much simpler? In a press conference at the American Astronomical Society, Mederic Boquien from the University of Massachusetts showed that the study of the star formation process is much more... |
4 June 2008
10:25 GMT |
|
|
Quasars are basically massive black holes surrounded by large accretion disks of matter and can be mostly found in active galactic nuclei. As they swallow large quantities of matter, quasars may eject gas into the interstellar space, so that star formation processes are stopped and the galaxy housing it evolves passi... |
9 April 2008
03:37 GMT |
|
|
Quasars are basically black holes surrounded by large accretion disks of matter spinning around them. As matter is being drawn to the central black hole, it heats up and starts emitting high amounts of radiation, while powerful magnetic fields eject part of the material back into the surrounding space before crossing... |
7 April 2008
09:40 GMT |
|
|
According to new observations conducted with the Chandra X-ray Space Observatory, stars are no longer restricted to form inside the accretion disk of matter of a particular galaxy, but could easily start a star formation process far away if provided with the required amount of material. Such a process is currently ta... |
29 February 2008
09:42 GMT |
|
|
The Milky Way and even its sister galaxy Andromeda have long passed their phase of peak star formation activity, nonetheless it doesn't necessarily mean that the other galaxies in the Local Group did it as well. Take for example the Triangulum Galaxy, better known to astronomers as M33, a spiral galaxy two times... |
27 February 2008
05:18 GMT |
|
|
It is a well known fact that galaxies can form new stars as they move through the space to join other galaxies in dense galaxy clusters which are pulled together by the powerful gravitational forces. Nevertheless, most of them tend to follow the gas filaments of dark matter that stretch between the galaxies. As they ... |
30 January 2008
03:46 GMT |
|
|
For the ground-based telescopes they look just like any other stars, while the Hubble Space Telescope reveals that these distant objects are actually massive clouds of dust and gas, factories for some of the first stars ever to shine light in the universe. These primitive galaxies, dating more than 12 billion years i... |
9 January 2008
06:15 GMT |
|
|
The Milky Way usually spawns about four new stars every year, although the recent discovery of a new galaxy reveals that it is furiously creating a thousand times more stars than our own. Situated at more than 12 million light years away from Earth, the new galaxy appears as it looked 1.5 billion years after the Big ... |
19 December 2007
05:53 GMT |
|
|
Representing one of the brightest stellar explosions seen this year, the GRB 070125 was discovered on the 25th of January with the Palomar robotic space telescope, operated by the Inter-Planetary Network. It is not the intensity of the glow that seems to present too much interest to astronomers since supernova explos... |
19 December 2007
04:00 GMT |
|
|
The infrared view of the Spitzer Space Telescope shows, for the first time, the early stage of a sun-like structure, when the cloud of dust and gas surrounding it is being flattened and collapsed into a thin disk gravitating it in an approximate equatorial region. The presence of the ejected streams of gas from the s... |
30 November 2007
04:43 GMT |
|
|
Though the star formation theory is well developed and very much understood, scientists found that there are some unexplained issues in it. It cannot explain a key element in the final stage of a star's birth, the link between its angular momentum or spin as it is known, and the centrifugal forces that act on it... |
1 November 2007
04:11 GMT |
|
|
Find us on Google+
