A few decades ago, we knew of no other planets beyond those in our solar system. Today, astronomers have confirmed over 700 planets circling other suns and believe billions more lay undiscovered.

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 …

Harvard University Professor of Physics Andrew Strominger explores the deep theoretical puzzles that have driven black hole research and the insights achieved by recent breakthroughs. This program is part of …

In this live discussion and Q & A, Brian Greene addresses a wide range of fascinating questions, taken directly from the live chat, and covering a variety of topics, from …

Harvard professor and 2017 Breakthrough prize winner in Fundamental Physics, Cumrun Vafa joins Brian Greene for a discussion on the past and future of string theory and how puzzles ignited …

Astronomer Jill Tarter leads the charge to search for intelligent life on other planets by listening to clues from over 40 radio telescopes. Episode filmed live at the 2010 World …