Epic galactic storms shut down star formation

ESA’s Herschel Space Observatory has found gigantic storms of molecular gas gusting in the centers of many galaxies. These powerful storms, driven by star formation and central black holes, are strong enough to halt the mechanisms that produced them in the first place.
Some of these massive outflows can reach extremely …

A new class of black holes?

Among all the objets in our Universe, some are much smaller than their siblings, such as dwarf stars or dwarf galaxies. Scientists now suggest dwarf black holes might exist, and that some might be forming right now.
When it comes to black holes, we usually hear about supermassive black holes, at …

Black hole Cygnus X-1 reveals strong magnetic fields

The black hole Cygnus X-1 is revealing new details about its vicinity. The chaotic region is threaded by strong magnetic fields.
Cygnus X-1 was the first black hole discovered by astronomers, in 1964. It is part of an X-ray binary located 6,000 light-years away from the Sun: it is about 8.7 …

Supermassive black hole blowing bubbles around our Galaxy

Last year, NASA’s Fermi space telescope found a previously unseen structure: two huge gamma-ray bubbles, centered on the Milky Way. The bubbles extend 25,000 light-years north and south of the galactic center. Their nature and origin are still unclear.

A giant ring of black holes

The Space Telescope Science Institute (STScI) in Baltimore, Md. produced a composite image of Arp 147, a pair of interacting galaxies located about 430 million light years from Earth. In this picture, X-rays from the NASA’s Chandra X-ray Observatory are in pink, and optical data from the Hubble Space Telescope …

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