Positronium can generate huge amounts of energy. It can shed light on 'antimatter' which existed at the beginning of the Universe, and studying it could revolutionise physics, cancer treatment ...
But for decades, scientists have wondered what would happen to an “anti-apple” made of antimatter - would it fall in the same way if it existed? Until now, the question has left scientists with an ...
Artwork: shortly after the Big Bang which created the Universe, matter and antimatter existed in equal amounts Scientists have made a key discovery about antimatter - a mysterious substance which ...