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 ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American In an earlier blog post about Christopher ...

What if humanity grew to be so technologically advanced that we were able to leave our Solar System and spread across ...

We spoke to a genuine astrophysicist about the accuracy of Star Trek's approach to interstellar travel, the holodeck, and the transporter.

A comet from another star system is due to make its closest—and final—approach to Earth this week before it continues on its journey back toward interstellar space. Interstellar Comet 3I/ATLAS will ...

The farthest spacecraft from Earth has shut down another instrument in the hopes of buying time for an upgrade that could boost the aging probe’s impressive lifespan.