Naman Kumar

Stephen Hawking showed that black holes, regions with gravity so strong that even light cannot escape, emit particles and eventually evaporate. This process is called Hawking radiation. But a question arises: where does the information about what fell into the hole go?

If you toss a book into a black hole, the pages don't vanish without a trace: their content remains encoded in the radiation the hole emits. But how exactly does that happen? In some models, 'islands' appear — regions inside the hole that seem to push information back out.

A classical black hole has a temperature and other thermodynamic properties. When physicists began accounting for changes in the cosmological constant, the energy of empty space, a strange coupling emerged in the equations.