Step into the fascinating science behind Interstellar as we explore the extreme effects of time dilation near a black hole.

Explore one of the most fascinating aspects of Christopher Nolan's iconic film Interstellar: time dilation. As astronauts ...

Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" alien technology.

The White House and a close circle of lawyers plan for Trump to hit the ground running if there's a Supreme Court vacancy, sources tell TIME.

Interstellar Meteors Hit Earth All the Time but Still Elude Astronomers Astronomers think small space rocks from beyond our solar system routinely strike Earth—but proving it isn’t easy ...

Astronomers think small space rocks from beyond our solar system routinely strike Earth—but proving it isn’t easy ...

The interstellar interloper is zipping through our solar system at ludicrous speeds, clocking in at 37 miles (60 kilometers) per second.

Harvard astrophysicist Avi Loeb suggested in a new paper that the object — only the third interstellar object ever detected — could be an intelligently directed alien craft observing Earth ...

The long-serving space telescope saw the third interloper to enter the solar system from beyond its limits late on Monday morning (July 21).

"The consequences, should the hypothesis turn out to be correct, could potentially be dire for humanity," said Avi Loeb.

Time travel is one of the hallmarks of science fiction, but many time-travel-based movies have plots that leave one with a headache just thinking about them. What if you could travel into the past ...