Two recent studies speculate a natural emergence of the mysterious substance, offering ‘self-contained and calculable ...

The new measurement from LHCb has found differences between baryons and antibaryons, which are made of three quarks and three antiquarks respectively. Significantly, baryons make up most of the known ...

A trillion years ago, our universe didn’t exist, at least not in any recognizable form. According to the Big Bang theory, ...

A new theory promises to simplify our approach to the universe's earliest moments, but some cosmologists say further mathematical scrutiny is warranted.

A theory known as non-singular matter bouncing cosmology suggests that the universe “bounces” between a hot big bang era and the kind of universe we see today.

The universe is not just expanding – its rate of expansion is accelerating. And that expansion rate is even faster than the leading theory predicts it should be.

A new theory published late last year is offering an explanation as to why our universe is expanding at an accelerating rate: Merging with "baby" universes.

The early universe To understand the nature of the current tension and its possible solutions, it is important to understand how structure in the universe formed and subsequently evolved. Much of our ...

Notably, according to most versions of the theory, rather than there being one universe, ours is just one universe in a multiverse — an infinite number of universes, the others of which may be ...

The universe is expanding faster than physicists would expect. To figure out what processes underlie this fast expansion rate, some researchers are first trying to rule out what processes can’t.