According to quantum mechanics, a vacuum state is populated by virtual particle pairs undergoing spontaneous creation and annihilation processes. These...
The new image produced by the Event Horizon Telescope (EHT) Collaboration shows the area close to the event horizon of Sagittarius A* (Sgr A*), the 4.3-million-solar-mass...
In April 2019, the Event Horizon Telescope (EHT) Collaboration released stunning images of M87*, a 6.5-billion-solar-mass black hole in the center of the...
An international team of physicists from RIKEN, Cornell University and the University of California, Santa Barbara, has used a new spacetime geometry with...
In 1997, cosmologists Stephen Hawking, Kip Thorne and John Preskill made a famous bet as to whether information that enters a black hole ceases to exist....
Black holes are famously compact objects where the paths of light are drastically bent by the curvature of space-time. While light itself cannot escape...
Hawking’s black-hole area theorem, also known as the second law of black hole mechanics, states that the total horizon area of a classical black hole...
Gravitational-wave detectors can be used to measure gravitational-field hair of extreme black holes, according to a paper published in the journal Physical...
Spinning black holes store rotational energy that can be extracted; when a black hole is immersed in an externally supplied magnetic field, reconnection...
The 2017 observations from the Event Horizon Telescope (EHT) of M87*, a 6.5-billion-solar-mass black hole in the center of the giant elliptical galaxy...
In 2019, the Event Horizon Telescope (EHT) delivered the first resolved images of M87*, the supermassive black hole in the center of the giant elliptical...
An analysis of archival X-ray data from NASA’s Rossi X-Ray Timing Explorer has revealed a clear separation between the characteristics of stellar-mass...
In April 2019, the Event Horizon Telescope (EHT) Collaboration released stunning images of the supermassive black hole in Messier 87, a giant elliptical...
Astronomers using the GRAVITY instrument on ESO’s Very Large Telescope Interferometer (VLTI) have detected flares of infrared radiation coming from the...
A team of theoretical physicists at the University of Cambridge, UK, has used computer simulations to predict the existence of a so-called naked singularity,...
