black hole – Page 6 – Astronomy Now

‘Interstellar’ technology throws light on spinning black holes

14 February 2015 Astronomy Now

The team responsible for the Oscar-nominated visual effects at the centre of Christopher Nolan’s epic, Interstellar, have turned science fiction into science fact by providing new insights into the powerful effects of black holes.

Galactic get-together has impressive light display

12 December 2014 Astronomy Now

NGC 2207 and IC 2163 are two colliding galaxies in the constellation of Ursa Major some 130 million light-years from Earth. Between them they have produced one of the most bountiful collections of ultraluminous X-ray sources (ULXs) known.

Pulsar with black hole could hold the ‘holy grail’ of gravity

6 December 2014 Astronomy Now

The intermittent light emitted by a pulsar allows scientists to verify Einstein’s theory of relativity, especially when paired up with another neutron star that interferes with its gravity. According to researchers from Spain and India, this theory could be analysed much more effectively if a pulsar with a black hole were found.

‘Eye of Sauron’ provides new way of measuring distances to galaxies

26 November 2014 Astronomy Now

A team led by Dr. Sebastian Hoenig from the University of Southampton has developed a new way of measuring precise distances to galaxies tens of millions of light-years away, refining the distance to NGC 4151 and providing a way for accurately determining black hole masses.

Chandra X-ray Observatory image of Sagittarius A*

Milky Way’s supermassive black hole a neutrino factory?

14 November 2014 Astronomy Now

A research team from the University of Wisconsin has correlated data from three NASA satellites and a ground-based neutrino detector to show that Sagittarius A*, the supermassive black hole at the centre of the Milky Way, is most likely a powerful neutrino generator.

Astronomers solve puzzle about bizarre object at the centre of our galaxy

4 November 2014 Astronomy Now

The mystery about a thin, bizarre object in the centre of the Milky Way headed toward our galaxy’s enormous black hole has been solved by astronomers using the Keck Observatory.

Ultra-bright pulsar is an X-ray mystery

13 October 2014 Keith Cooper

Blinding bursts of X-rays are coming from a supercharged pulsar lying in a galaxy 10 million light years away, more powerful than any pulsar ever seen before. The discovery, by NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR, challenges what we thought we knew about these extreme objects.