With ever more refined techniques for measuring complex brain activity, scientists are challenging the understanding of thought, memory and emotion–what we have traditionally called “the self.”

Dark energy is cosmology’s biggest mystery—an anti-gravitational force that confounds the conventional laws of physics. It makes up more than two-thirds of the cosmos, but science is still grappling to explain what dark energy actually is.

Meet roboticist Heather Knight and explore the interactive robotic experiences she has created, which include a giant Rube Goldberg machine and a wise-cracking robot, Data, who performs a stand-up comedy …

Are we alone in this vast universe? Some think that’s highly unlikely. With new technologies joining the search, NASA estimates we’ll find definitive evidence of aliens within 20 to 30 …

The first detection of colliding black holes rocked the scientific world, establishing that gravitational waves are real and that we are able to measure them. More recently, scientists have achieved …

See how engineer and art historian Maurizio Seracini uses his pioneering multispectral imaging techniques and other tools to uncover the long-hidden stories behind masterpiece paintings. Episode filmed live at the …