According to a group of Belgian scientists, neutrons switch universes when they decay because they decay when they switch universes.

Continuing the trend of looking too closely to CMBR maps, a group of cosmologists says they found evidence of "bruises" from collisions with other universes.

A new paper concludes that black holes are periodically giving birth to new universes. How it arrives at that conclusion raises a lot of questions.

If our universe is one of many, just how many others are out there? A duo of physicists try to answer that question. Well, sort of...