Intuitively, we know what time is, but try to explain it, and we end up tying our minds in knots. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Recent discoveries in the realm of physics have pointed to the possibility of time anomalies that challenge our current understanding of space-time. These findings open new avenues for exploring the ...

Daryl Janzen does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Einstein's theory of general relativity views time similarly to width, height, and length. As such, both time and space can be curved by gravity. This effectively means that time is slower the closer ...

The original version of this story appeared in Quanta Magazine. At the beginning of time and the center of every black hole lies a point of infinite density called a singularity. To explore these ...

MIT astronauts aboard the International Space Station—and the MIT researchers who have sent up experiments—have advanced our understanding of science, space, and the universe. On November 2, 2000, ...