How is the total mass of the universe calculated? Bob GiddingsGreen Bay, Wisconsin Calculating the total mass of the universe ...

For scientists, that has long posed a problem: According to physicists’ best current theories, matter and its counterpart, ...

Mathematical quirks of our universe have led some cosmologists to wonder whether the cosmos was actually born in a black hole ...

The universe exists because matter and antimatter are not good friends. Is there a scientific reason why the universe exists?

If you think a galaxy is big, compare it to the size of the universe: it's just a tiny dot which, together with a huge number ...

A backward, mirror universe could explain the existence of dark matter. If an anti-universe exists, it would run backward in time, before the Big Bang. Dark matter, then, could be right-handed ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Conceptual illustration depicting matter transitioning from a black hole to a white hole. | ...

Our understanding of cosmology hinges on how well we know our own local universe, which remains poorly mapped and poorly ...

Deep in the first moments of the Big Bang, the entire cosmos shook and rumbled. Those quakes still reverberate to the present day. It will take the most sensitive instruments ever imagined to reveal ...

Scientists have found a remarkably small yet bright object from the early universe that doesn’t make sense in our existing models of how stars and galaxies formed, even our own Milky Way. That means ...

Here’s what you’ll learn when you read this story: A backward, mirror universe could explain the existence of dark matter. If an anti-universe exists, it would run backward in time, before the Big ...