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Nov. 30  An ultraluminous infrared merger
The galaxy IIZw 096, 500 million light years away in the constellation of delphinius, has attracted the attention of researchers because it turns out to be one of the most luminous objects in the infrared in the local >>>
Nov. 29  Not much life in the California Nebula
It's well known that stars are born from the gravitational contraction of gas in diffuse nebulae, and that the more gas is available the greater the number of stars that are formed. At least that is what was thought until >>>
Nov. 27  Here's how M31, LMC and SMC formed
A very attractive hypothesis has emerged from a series of complex computer simulations carried out by a group of astronomers from the Observatoire de Paris and the National Astronomical Observatory of China >>>
Nov. 26  Massive galaxies, unusually distant
A preview has just been released of results, soon to be published in The Astrophysical Journal, that reveal the existence of very massive galaxies only 1.5-2 billion years after the Big Bang. They are 5-10 times >>>
Nov. 24  The Universe was liquid
A few microseconds after the Big Bang the Universe behaved like an ultra dense, ultra hot liquid. This is the surprising conclusion reached by a team of physicists working with the ALICE detector of the Large >>>
Nov. 23  New light shed on T-dwarf stars
Amongst the coolest brown dwarfs are those of spectral class T, that have methane rich atmospheres; in fact they are often called "Methane Dwarfs". Their low masses and temperatures, typically around 1000 >>>
Nov. 22  Ellipticals produce stars too
The idea that elliptical galaxies are essentially a kind of stellar museum, containing only stars billions of years old, must surely be abandoned by now. In fact it's been established that about a third of all ellipticals >>>
Nov. 19  Fewer stars than predicted: here's why
Calculations by Jan Pflamm-Altenburg and Pavel Kroupa of the Argelander-Institut für Astronomie (University of Bonn), in collaboration with Carsten Weidner of St. Andrews University (Scotland) show that there are >>>
Nov. 18  NGC 1514 according to WISE
Last September NASA's Wide-field Infrared Survey Explorer (WISE) began a new phase of operation, called NEOWISE, marking the end of its supply of liquid coolant for the longest wavelength detectors (two shorter >>>
Nov. 17  White dwarfs on the verge of explosion
As a by-product of a search for hyper-velocity stars escaping from the Galaxy, Warren Brown and his team at the Harvard-Smithsonian Center for Astrophysics, have recently discovered a handful of binary star >>>
Nov. 16  Baby black hole in M 100
On 19th April 1979 the amateur astronomer Gus E. Johnson, from Swanton (Maryland), discovered a supernova in the spiral galaxy M 100. After 30 years that supernova is making the news again because it >>>
Nov. 15  Barred galaxies age more quickly
Galaxy Zoo 2, the "sequel" of Galaxy Zoo, has produced its first scientific result, leading to an article published recently in the Monthly Notices of the Royal Astronomical Society by Karen Masters and her team >>>
Nov. 12  Hartley: carbon dioxide jets
The first scientific results of the recent flyby of comet 103P/Hartley 2 by the EPOXI mission are starting to materialise. The most recent and interesting to date is that for the first time it has been possible to >>>
Nov. 11  Saturn's thermal anomalies
In research published a couple of days ago in the Journal of Geophysical Research-Planets, it is shown that the two hemispheres of Saturn show temperature variations that can only partly be explained by >>>
Nov. 10  Huge Galactic structure discovered
Out of the fog of ultra-high energy photons that pervades our galaxy, a gigantic structure has been uncovered. It consists of two bubbles of gamma ray radiation, one to the north and one to the south of >>>
Nov. 9  Is Eris smaller than Pluto?
This is the question raised by the occultation of a 17th magnitude star that happened on 6th November. Passing infront of the star was Eris, the dwarf planet discovered in 2005 by a team lead by Mike Brown at Caltech. >>>
Nov. 8  Earth: water from the first day
According to an important article by Nora H. de Leeuw (University College London) and colleagues, published in Chemical Communications, the water on our planet is not of extraterrestrial origin. Until now it was >>>
Nov. 6  New kind of rocks discovered on the Moon
No new types of lunar rock had been discovered since the Seventies. The last was a new kind of basalt containing very little titanium, brought back to Earth by the Apollo astronauts. The new discovery is of >>>
Nov. 4  The first photos of comet 103P/Hartley 2
The Deep Impact spacecraft has successfully executed its second cometary flyby, this time of the periodic comet Hartley 2. The mission, named EPOXY, was intended to photograph and study the nucleus at >>>
Nov. 4  Hanny's Voorwerp: the mystery solved
In 2007, as part of the galaxy classification project known as the Galaxy Zoo, the Dutch school teacher, Hanny van Arkel, discovered an unusual green object, that, for want of a better identification has been >>>
Nov. 3  Cosmic climate change
The idea of a Universe who's temperature decreases steadily as it ages and expands seems inconsistent with a recent discovery of a long period in which the temperature actually increased, as shown by an >>>
Nov. 2  The shadow of galaxy clusters on the CMB
A large group of astronomers from the Rutgers University (New Jersey) and at the Pontifical Catholic University of Chile (PUC), has discovered 10 remote galaxy clusters via their "shadows" projected onto >>>

 

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