**Black Holes Workshop XIV**

From astrophysics to high-energy physics, from information theory to quantum gravity, black holes have acquired an ever increasing role in fundamental physics, and are now part of the terminology of many important branches of observational, theoretical, and mathematical physics.

The Black Holes Workshops gather researchers working on physical and mathematical problems of black holes, both in its classical and quantum aspects, as well as their connections to general relativity and gravitation, string theory, cosmology, and astrophysics, and stimulate the interaction between all these issues.

The fourteenth edition of the Black Holes Workshop celebrates three landmark contributions in the history of black holes: Firstly, on the classical theory side, the 50th anniversary of the Carter uniqueness theorem, which after Israel's 1967 and 1968 pioneering contributions, and subsequent improvements by Robinson, led to the Kerr hypothesis and the remarkable idea that black holes have "no-hair"; secondly, on the observational side, the 50th anniversary of the Lynden-Bell and Rees proposal that there is a black hole at the galactic centre, an hypothesis vindicated by half a century of observational and theoretical developments culminating with the 2020 Nobel Physics Prize for black holes; thirdly, the 25th anniversary of the Vafa and Strominger computation of the microscopic origin of the Bekenstein-Hawking black hole entropy formula for a class of black holes in string theory.

Researchers on black holes in all their aspects are invited to participate. The workshop is organized by the Gravitation group of Aveiro University and will be held at Aveiro University, in Aveiro, Portugal, in December 20 and 21, 2021.

We hope the combination of electromagnetic and gravitational wave observations, together with theoretical and computational developments, will keep on guiding new revelations about these intriguing objects, as illustrated by the artwork image of a binary black hole merger surrounded by accretion disks in the image above (Modified image from source material by NASA's Goddard Flight Center/Jeremy Schnittman).

If you are interested in attending the workshop, please register and send an abstract before November 26th.

**Venue: **

The meeting will occur in the Aveiro Campus unless this becomes impossible by the evolution of the Covid-19 pandemia. More information will follow in the fall 2021.