This is what it would really look like to travel at near-lightspeed

It's one of the most iconic images in all of science fiction: the stretching of stars as a ship makes the jump to lightspeed. But as a group of physics students at the University of Leicester has revealed, it wouldn't actually look like this. Instead, and assuming a ship could travel at nearly the speed of light, a… » 1/15/13 8:00am 1/15/13 8:00am

The thought experiment that proved light has a speed limit

It took a lot of careful and detailed measurement to prove that the speed of light doesn't change. But it also took one important thought experiment. The de Sitter Effect showed us how stars would look if light didn't have a speed limit. » 12/20/12 9:00am 12/20/12 9:00am

An art colony in Montana that's haunted by aliens

Lightspeed recently republished a classic story by Carolyn Ives Gilman, "Frost Painting," about a mysterious art colony in Montana that the locals say is inhabited by aliens — or maybe humans who have become alien. It's also the tragic, wistful story of an art critic who falls in love with an artist whose greatest works … » 6/17/11 2:41pm 6/17/11 2:41pm