They observe for the first time the decay of baryons, particles that make up the majority of the matter in the observable universe. After the Big Bang, matter and antimatter were created in equal ...

Everything we see around us, from the ground beneath our feet to the most remote galaxies, is made of matter. For scientists, that has long posed a problem: According to physicists’ best current ...

At the centre of our galaxy lies a supermassive black hole called Sagittarius A* – but one group of researchers is suggesting it may not be a black hole at all. The team says that it, and other black ...