okt 252012
 
A Mini-Supermassive Black Hole in a Bulgeless Spiral Galaxy

  One of the lowest mass supermassive black holes ever observed in the middle of a galaxy has been identified, thanks to NASA’s Chandra X-ray Observatory and several other observatories. The host galaxy is of a type not expected to harbor supermassive black holes, suggesting that this black hole, while related to its supermassive cousins, [continue reading]

okt 162012
 
Dark Matter Filament Studied in 3D for the First Time

  Astronomers using the NASA/ESA Hubble Space Telescope have studied a giant filament of dark matter in 3D for the first time. Extending 60 million light-years from one of the most massive galaxy clusters known, the filament is part of the cosmic web that constitutes the large-scale structure of the Universe, and is a leftover [continue reading]

okt 072012
 
Our Galaxy is Bigger and has More Dark Matter than Thought

  A research team, led by Associate Professor Mareki Honma from the National Astronomical Observatory of Japan (NAOJ), has succeeded in precisely determining the astronomical yardstick for the Milky Way galaxy based upon the precise distance measurements with VERA from NAOJ and other advanced radio telescopes. The new findings are that the distance from the [continue reading]

sep 252012
 
Milky Way is Surrounded by Huge Halo of Hot Gas

  Astronomers have used NASA’s Chandra X-ray Observatory to find evidence our Milky Way Galaxy is embedded in an enormous halo of hot gas that extends for hundreds of thousands of light-years. The estimated mass of the halo is comparable to the mass of all the stars in the galaxy. This artist’s illustration shows an [continue reading]

sep 092012
 
The Cosmic Origins of Silver and Gold

  Heidelberg scientist shows that silver and gold materialized in different stellar explosions. At the end of their lives, stars with ten times the mass of our Sun explode as so-called supernovae. In the process, elements like silver are either hurled out into the Universe or produced in the first place. The illustration is an artist’s impression [continue reading]

sep 082012
 
New Unified Theory of Dark matter and Dark Energy

  A pair of mathematicians — one from Indiana University and the other from Sichuan University in China — have proposed a unified theory of dark matter and dark energy that alters Einstein’s equations describing the fundamentals of gravity. The Hubble deep field is a picture of the furthest we have ever seen out into [continue reading]