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Oct 31  The dust around super-massive black holes
About 50% of the super-massive black holes, which lie at the centre of most galaxies, are hidden from our view by large clouds of dust. This dust is thought to be in a ring-shaped structure called a 'torus' >>>
Oct 28  A clearer picture of galaxy mergers
The formation and evolution of galaxies almost certainly involves mergers of galaxies, after all, we see several examples of the process in action, and it is difficult to escape from the notion that the >>>
Oct 26  So what happened to ROSAT?
Despite a good deal of attention from the international media in the days prior to ROSAT's re-entry, no-one seems to have payed much attention to the doomed satellite, that, at 03:50 CEST (Central >>>
Oct 24  WD 0806-661 B: the coolest brown dwarf yet
Its atmosphere has a temperature between 27 and 70°C and it's the coldest brown dwarf so far discovered (in the image it's labeled as "cold companion"). At a distance of 63 light years from Earth, it is >>>
Oct 21  A comet shower on Eta Corvi
At the "Signposts of Planets" meeting, organized by NASA, which ended yesterday at the Goddard Space Flight Center in Greenbelt, Carey Lisse, of Johns Hopkins University Applied Physics Laboratory >>>
Oct 19  Dark matter mystery in dwarf galaxies
We have no idea what it's made of and it can't be observed directly. We can only infer its presence via its influence on the so-called ordinary matter. We are talking, of course, about dark matter, the exotic >>>
Oct 17  New alert as ROSAT begins re-entry
Just as the spotlight moves away from the fall of the UARS satellite into the Pacific ocean so another unusually large re-entry is starting to make the news, and this time it's a more famous satellite >>>
Oct 14  G299.2-2.9, an aging supernova remnant
This image, released by NASA, shows the remains of a type Ia supernova explosion. This type of supernova occurs in a binary system, where a white dwarf, after having acquired mass from its >>>
Oct 12  How life survived the Snowball Earth
During the long history of the Earth there have been two, perhaps three, global glaciation events, during which the planet effectively became a giant snowball. These events, nicknamed "Snowball >>>
Oct 10  Uranus was hit more than once? Perhaps...
One of the strange things in our solar system is the fact that the spin axis of Uranus is inclined by 98° to the plane of its orbit, so that it literally "rolls" along its orbit rather than staying upright like the >>>
Oct 7  Discovering planets in the Hubble archive
Ever more discoveries are made as a result of analysing data in the archives of the various astronomical observatories. The latest example comes from a re-analysis of star images from the Hubble Space >>>
Oct 5  Neptunes in resonance around Kepler-18
During the meeting of the American Astronomical Society’s Division of Planetary Science Conference, now taking place in Nantes, a team of researchers from the University of Texas at Austin, have >>>
Oct 3  Arp 220, supernova champion
Arp 220, an object which formed as the result of the merger of two gas-rich galaxies, is the home of very active star formation, induced by the increased gas density resulting from the collision. This merger >>>

 

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