Time travel has long been a staple of science fiction, captivating imaginations with the possibility of moving through time ...

Time travel has long been a topic of science ... or CTCs—paths through space-time that loop back to the same ... A new quantum theory shows that time travel might work—if memory, ...

Three intertwined time directions may underpin everything, turning space into mere “paint on the canvas” and pushing physics ...

One of the biggest questions in physics asks whether space-time is classical or quantum in nature. From slow neutrinos to quantum foam, these experiments are hoping to finally answer it ...

A novel theory of "wavy space-time" suggests the division between our best descriptions of the universe on its smallest and largest scales may be because gravity does not play by quantum rules.

A controversial theory suggests that brain microtubules could contain quantum phenomena, linking your consciousness to the ...

Unfortunately, the general theory of relativity (GR) – which describes how gravity and space–time work in our universe – is not compatible with quantum mechanics. Indeed, GR says that space–time is ...

Space is big and time is relative, so a change to a quantum particle on Earth that’s entangled with a particle near a black hole 10 billion light-years away would mean changing the behavior of ...

Time is a thorny problem for physicists; its inconsistent behavior between our best theories of the universe contributes to a deadlock preventing researchers from finding a "theory of everything ...

A concept called “quantum entanglement” suggests the fabric of the universe is more interconnected than we think. And it also suggests we have the wrong idea about reality.

A new quantum theory shows that time travel might work—if memory, aging, and entropy reset inside a closed time loop. (CREDIT: CC BY-SA 4.0) ...