Can the spooky world of quantum physics explain bird navigation, photosynthesis and even our delicate sense of smell? Clues are mounting that the rules governing the subatomic realm may play an unexpectedly pivotal role in the visible world.

Are we alone? It’s a question that has obsessed us for centuries, and now we have the technology to do more than wonder. Scientists on the hunt for distant planets and extraterrestrial intelligence explore faraway galaxies and barely visible realms.

Cosmologist Hiranya Peiris joins Brian Greene to discuss pressing cosmological mysteries spanning dark matter, dark energy, the expansion rate of space, and the possibility of a multiverse.

#YourDailyEquation with Brian Greene offers brief and breezy discussions of the most pivotal equations of the ages. Even if your math is a bit rusty, these accessible and exciting stories …

Does your dog really think and feel like a human? Do our closest primate relatives have brains and emotions similar to ours? What about the storied intelligence of dolphins and singing humpback whales? And do other species hold surprises for us if we’re willing to look closely?

Brian Greene and Michael Levi discuss revolutionary observations that may upend our cosmological understanding. This program is part of the Big Ideas series, supported by the John Templeton Foundation.