What if you could travel back in time… and not break the universe? Scientists may have just cracked one of the biggest ...

While most time travel movies ignore quantum physics, Christopher Nolan's Intersteller, Avengers: Endgame, Planet of the Apes ...

The quantum world operates by different rules than the classical one we buzz around in, allowing the fantastical to the bizarrely normal. Physicists have described using quantum entanglement to ...

A ring in space, at least on paper, can do something a black hole cannot. It can connect distant regions without forcing ...

Time travel is still science fiction, but scientists have managed to make quantum systems appear to run backward in time. The breakthrough could pave the way for smarter quantum computers and entirely ...

Moskowitz: We’re going to have a little friendly debate. Billings: Really? I came for a throwdown. Moskowitz: Well, a wrangle. A parley. A confab. Lee, what do you have against time travel? Billings: ...

Cosmic strings are artifacts of what the universe looked like in the moments before it rapidly changed from a high-energy to low-energy environment—the Big Bang. Today, scientists believe cosmic ...

Moskowitz: We’re going to have a little friendly debate. Billings: Really? I came for a throwdown. Moskowitz: Well, a wrangle. A parley. A confab. Lee, what do you have against time travel? Billings: ...

One of the most famous paradoxes ever, the grandfather paradox, cautions against making changes that could break the timeline if you were to ever travel back in time. But, according to one scientist, ...

Predestination doesn’t waste time trying to explain the time travel technology, and it doesn’t need to, because it’s so coherent and straightforward, you naturally see that it makes sense right away.