We have not been able to detect dark matter yet, even though there are many aspects of the universe that suggest the existence of invisible matter. In one new theory, it is possible that dark matter ...

The original version of this story appeared in Quanta Magazine. After her adventures in Wonderland, the fictional Alice stepped through the mirror above her fireplace in Lewis Carroll’s 1871 novel ...

We may receive a commission on purchases made from links. The so-called Mirror Universe from the "Star Trek" franchise was first glimpsed in the original series' 1967 episode "Mirror, Mirror." That ...

Two recent studies by Professor Stefano Profumo at the University of California, Santa Cruz, propose theories that attempt to answer one of the most fundamental open questions in modern physics: What ...