Add Yahoo as a preferred source to see more of our stories on Google. Unravel the mind-bending science behind Interstellar's time dilation and see why the film's most puzzling moments finally make ...

“Time passed differently in the heavens. Muchukunda’s sacrifice became a cosmic bookmark between mythic epochs.” Cooper and ...

NASA is ready to call it: Voyager 1 has finally entered into interstellar space, for real this time. And, surprise, the satellite left for the interstellar a year ago, according to an analysis of the ...

Tune in today (Jan. 16) to bid farewell to interstellar comet 3I/ATLAS, courtesy of a livestream from the Virtual Telescope Project featuring live views of the enigmatic visitor as it continues its ...