News tagged with radio observations

Black holes spinning faster than ever before

( -- Two UK astronomers have found that the giant black holes in the centre of galaxies are on average spinning faster than at any time in the history of the Universe. Dr Alejo Martinez-Sansigre of the University ...

dateMay 23, 2011 in Astronomy
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Black hole awakens after 26 years

On 15 June 2015, V404 Cygni (V404 Cyg), a binary system comprising a sun-like star orbiting a black hole, woke up. A huge outburst of energy across the electromagnetic spectrum 'lit up' the sky. The last such outburst was ...

dateNov 05, 2015 in Astronomy
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Space Image: Ring of fire

( -- This composite image shows the central region of the spiral galaxy NGC 4151. X-rays (blue) from the Chandra X-ray Observatory are combined with optical data (yellow) showing positively charged hydrogen (H ...

dateDec 28, 2011 in Astronomy
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