Einstein once described his friend Michele Besso as “the best sounding board in Europe” for scientific ideas. They attended university together in Zurich; later they were colleagues at the patent ...

As time goes on and things in life appear to get progressively weirder, the theory that we’re all living in a simulation seems more and more realistic. Now, another TikTok video is taking it a little ...

Ian G. McCarthy receives funding from UKRI's Science and Technology Facilities Council (STFC). He works for Liverpool John Moores University. Given how unfathomably large the universe is, it is ...

George Ellis is not afraid to rock the establishment. In his youth in South Africa, his target was a recognizably corrupt and racist government. Now a cosmologist at the University of Cape Town, Ellis ...

The ancient Greeks conceived of five building blocks of matter – from bottom to top: earth, water, air, fire, and aether. Aether was the matter that filled the heavens and explained the rotation of ...