The laws of physics mean that communication with near-light-speed spacecraft would be very challenging. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Time dilation, brought about by the relativistic expansion of space, has resulted in the observed slowing of 'clocks' in the early universe. When you purchase through links on our site, we may earn an ...

Time dilation, a captivating concept embedded in Einstein’s theory of relativity, has been experimentally validated on Earth. With the use of ultra-precise clocks, scientists have been able to ...

WASHINGTON, July 3 (Reuters) - Time is a slippery thing, as profound thinkers like physicist Albert Einstein and, well, fictional time traveler Dr. Who plainly understood. The latter, in a 2007 ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Jarred Roberts receives funding from NASA. My telescope, set up for astrophotography in my light-polluted San Diego backyard, was pointed at a galaxy unfathomably far from Earth. My wife, Cristina, ...