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 ...

Here’s what you’ll learn when you read this story: Our brain’s evolution makes it nearly impossible to commit to a multi-generational mission like interstellar travel, says one evolutionary ...

“The whole thing is very hypothetical at this point,” Stephen Hsu said of wormholes, a caution that still defines the subject even as the idea keeps resurfacing in serious physics. The appeal is ...

A private organization will invest a grant in an interstellar space travel business plan. Is it a smart move? To infinity and beyond? Not quite yet. The Defense Advanced Research Projects Agency ...