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 …

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 …

As long ago as the early 19th century, the poet Keats bemoaned the washing away of the world’s beauty and mystery in the wake of natural philosophy’s reductionist insights—its tendency …