Explore 25 universe mysteries scientists are still scratching their heads over, from dark matter to the Big Bang's secrets.

A new kind of dark matter could help explain some of the universe’s mysteries, a new study suggests. The study proposes that there are dense clumps of “self-interacting dark matter”, or SIDM, each ...

JWST has revealed a strange early universe filled with ultra-bright “blue monster” galaxies, mysterious “little red dots,” and black holes that seem far too massive for their age. A new study proposes ...

Scientists using Google’s quantum processor have taken a major step toward unraveling the deepest mysteries of the universe. By simulating fundamental interactions described by gauge theories, the ...

Space-time is being driven apart. Every second that passes, the universe expands faster and faster. What is propelling this dramatic acceleration is an enigma, though – one scientists have known about ...