Relativity

Two analyses suggest that the signal of big bang ripples announced earlier this year was too weak to be significant

Two astronomers recall almost mistaking light from the big bang for pigeon droppings

Last year I got talking to theoretical physicist Aron Wall about the thermodynamics of quantum gravity. Now that's a deceptively beautiful phrase: in four words, you get three of the deepest areas in modern science.

As any avid Star Trek fan can tell you, the eccentric physicist Zefram Cochrane invented the warp-drive engine in the year 2063. It wasn't easy.

Charles Liu, astrophysicist at the American Museum of Natural History, answers questions submitted to our YouTube Space Lab Channel

This video made me laugh harder than anything I’ve seen in a long time. Okay, except for some Louis CK videos. But for a non-comedian (allegedly)… this is hard to beat.

A decades-old paradox returns

Yakov Sinai has developed fundamental tools for the study of unpredictable phenomena

Everyone needs a little light relief sometimes, including the Nobel winning economist and writer/blogger extraordinaire Paul Krugman. A few months back he reminded the world of a short paper he’d written some years ago on the rather unexpected topic of interstellar finance.

Theoretical cosmologist Sean Carroll answers questions submitted to our YouTube Space Lab Channel

If particles of light have mass, a small but distinct possibility, they may not live forever—and some fundamental theories would have to be modified, too

A newly discovered magnetized neutron star could be used to test Einstein's general theory of relativity