Are there unresolved foundational questions in quantum physics? Philosopher Tim Maudlin thinks so, and joins Brian Greene to explore possible answers. This program is part of the Big Ideas series, …

Extra dimensions of space — the idea that we are immersed in hyperspace — may be key to explaining the fundamental nature of the universe. Relativity introduced time as the fourth dimension, and Einstein’s subsequent work envisioned more dimensions still — but ultimately hit a dead end.

A second doesn’t always feel like a second—time can seem to slow down if you’re riding a death-defying roller coaster, or speed up while you’re having a night out on the town. But just what’s going on inside our heads to skew our perception of time?

This video is part of our Brilliant Breakthroughs series: our new 20-episode mini-series exploring the “Eureka!” moments and proud accomplishments of the greatest scientific minds of our time. Join us …

Nobel laureate David Baker joins Brian Greene to discuss groundbreaking work that leverages the chemistry of life to design powerful new molecules with wide ranging applications.

Recent breakthroughs in dating ancient samples of DNA and human remains have led to a radical reassessment of human origins. At least ten other early human groups–some with the cognitive capacity to make …