theory of general relativity

Dual BHs

Spotted in New Gravitational Wave Discovery: A Stranger in the Stellar Graveyard

Abhirup Ghosh 23/06/2020

One of the two objects involved in the new...

An artist’s impression of the path of star S2 as it passes very close to the supermassive black hole at the centre of the Milky Way. The very strong gravitational field causes the colour of the star to shift slightly to the red. (Size and colour exaggerated for clarity)

Einstein’s Theory of Gravity Tested by a Star Speeding Past a Supermassive Black Hole

Tanya Hill and Geraint Lewis 31/07/2018

For most places in the universe, where gravitational fields...

file-20171127-2004-mbwiv5

Fifty Years Ago Jocelyn Bell Discovered Pulsars and Changed Our View of the Universe

George Hobbs, Dick Manchester and Simon Johnston 29/11/2017

Pulsars are one of the finest tools we have...

Credit: Wikipedia

‘We Have No Idea yet’ Are the Most Wonderful Words in Science

Daniel Whiteson 17/09/2017

The most dramatic insights are likely to appear not...

opticsins

LIGO Detects Second Black Hole Merger, Sets Gravitational Wave Astronomy on Its Way

Vasudevan Mukunth 15/06/2016

The Indian members of the scientific collaboration were instrumental...

Elegant but elusive. Simulation of merging black holes showing gravitational waves. Credit: NASA/ESA/wikimedia

Listen: The Discovery of Gravitational Waves, a New Window to the Universe

Padmaparna Ghosh and Samanth Subramanian 24/02/2016

A century after Einstein’s prediction of gravitational waves, LIGO’s...

The Laser Interferometer Gravitational-wave Observatory in Hanford, Washington. Credit: Caltech/MIT/LIGO Lab

Scientists Claim Sensational Detection of Gravitational Waves and Herald New Era in Astronomy

Vasudevan Mukunth 11/02/2016

The LIGO collaboration in the US has claimed it...