black holes – Astronomy Now

Polarised light shows magnetic field around M87’s black hole

24 March 2021 Astronomy Now

The Event Horizon Telescope collaborations provides a fresh look, in polarised light, at M87’s supermassive black hole.

Gravitational wave observatories detect biggest black hole merger yet

2 September 2020 Astronomy Now

Gravity waves indicate the birth of an elusive intermediate-mass black hole, raising fresh questions about the gap between stellar and supermassive black holes.

Researchers find gas cloud pulsing in synch with distant microquasar

21 August 2020 Astronomy Now

Researchers find otherwise inconspicuous gas cloud pulsing in harmony with a distant black hole, suggesting a direct connection.

Most massive black hole yet discovered redefines ‘gargantuan’

1 July 2020 Astronomy Now

Astronomers find a supermassive black hole 8,000 times more massive than the one at the heart of the Milky Way.

Astronomers find closest black hole yet in ‘nearby’ star system

8 May 2020 Astronomy Now

Astronomers have stumbled on the closest black hole to Earth discovered to date, an unseen body in a triple star system 1,000 light years away.

Intermediate mass ‘missing link’ black hole identified

2 April 2020 Astronomy Now

The Hubble Space Telescope provides strong evidence that a presumed tidal disruption event was caused by an intermediate-mass black hole.

Analysis shows black hole images feature data-rich substructure

20 March 2020 Astronomy Now

Theoretical analysis suggests higher-resolution images of nested photon rings will provide a direct measure of a black hole’s size and spin.

Astronomers thrilled by most powerful gamma ray burst to date

24 November 2019 Astronomy Now

Astronomers have spotted the most powerful gamma ray burst to date, a titanic explosion that emitted radiation a trillion times more energetic than visible light.

A galactic train wreck with three supermassive black holes

23 November 2019 Astronomy Now

A third supermassive black hole has been found near the heart of an ongoing collision of three massive galaxies 300 million light years from Earth.

New technique touted for spotting elusive black hole mergers

18 November 2019 Astronomy Now

Black holes merging in the accretion disc of a supermassive black hole like the one at the core of the Milky Way might generate a visible signature, astronomers say.