Interstellar travel is a staple of science fiction, but writers and filmmakers often take different approaches to it. Here's what "Project Hail Mary" does.

Add Yahoo as a preferred source to see more of our stories on Google. Five physical barriers may prevent civilizations from ever meeting, from light speed limits to cosmic timing gaps. (CREDIT: ...

Physics sets unforgiving limits on how fast anything can move, yet the same laws also leave surprising room for creative ways to cross the gulf between stars. The real question is not whether the ...

Reaching distant star systems may require voyages lasting centuries or even millennia. But how could humans survive such an epic journey? In this video we explore the engineering, biological, and ...

A cosmic traveler from beyond our solar system is making its closest approach to Earth this week, offering astronomers and stargazers a fleeting opportunity to witness a visitor from another star ...

From isolated lunar bases to interstellar odysseys and distant galaxies, these 15 films explore humanity’s courage, survival and wonder, turning the infinite void of space into a stage for stories ...

The interstellar comet 3I/ATLAS was the third object ever discovered in our solar system that originated from another star system. Despite a viral conspiracy theory, NASA officials have repeatedly ...

It ain't from around these parts of space.

“There is a silence in the night sky that has bothered me for as long as I can remember.” That observation, attributed to American physicist Richard Feynman, captures a tension many people feel when ...

“There is a silence in the night sky that has bothered me for as long as I can remember.” Richard Feynman’s reflection lingers because it feels personal. The stars look crowded. Common sense whispers ...