Ecologist and explorer Mark Moffett has trekked across the globe to document new animal species and behaviors. Just like the creatures he studies, Mark can be found crawling in the …

We spend a third of our lives asleep. Every organism on Earth—from rats to dolphins to fruit flies to microorganisms—relies on sleep for its survival, yet science is still wrestling with a fundamental question: Why does sleep exist?

What are scientists looking for when searching for alien life? A lot, it turns out: the search for extraterrestrials requires the help from astronomers, planetary scientists, chemists, computer scientists, and geneticists, just to name a few. But are we barking up the wrong carbon-based tree?

Brian Greene and Nobel Laureate Frank Wilczek discuss quantum mechanics, dark matter, cosmology, consciousness, and Wilczek’s new book, “Fundamentals: Ten Keys to Reality.” This program is part of the Big …

In this World Science U Live Session, Nobel laureate, former Director of the National Institutes of Health and former President of Memorial Sloan Kettering, Harold Varmus, M.D., and Brian Greene …

Students in the biology class of @ScienceWithTom write and perform rapping, rhyming biology songs that leave them inspired to learn more. Science teachers prepare tomorrow’s pioneering scientists. Episode filmed live …