Prof Mallett has wanted to build a time machine for most of his life. His passion, he explains, can be traced to a tragic event early in his life.

A theoretical physicist hid his dream of time travel for decades. Now, his time machine theory is forcing scientists to rethink what’s really possible.

Researchers have created time machine-like simulations recreate the full life cycle of some of the largest collections of galaxies observed in the distant universe 11 billion years ago.

Researchers have created time machine-like simulations recreate the full life cycle of some of the largest collections of galaxies observed in the distant universe 11 billion years ago.