New Orleans native Lisa P. Jackson is administrator of the Environmental Protection Agency (EPA). She is the first African-American to serve the post. She started her career working for the …

Do we make conscious decisions? Or are all of our actions predetermined? And if we don’t have free will, are we responsible for what we do? Modern neurotechnology is now allowing scientists to study brain activity neuron by neuron to try to determine how and when our brains decide to act.

So you thought nobody could know what you’re thinking? Well, you’re right. For now. But fMRI brain research, identifying patterns linked to thoughts, is moving forward at a pace that’s surprising even experts.

Renowned cosmologist David Spergel joins Brian Greene to discuss the triumphs and tensions of precision cosmology, exploring remarkable successes as well as persistent discrepancies bedeviling current understanding. This program is …

Acknowledging the scientists who blazed intellectual trails before him, Isaac Newton wrote, “If I have seen a little further it was by standing on the shoulders of giants.” In this special annual series, we invite our audience to stand on the shoulders of a modern-day giant. This year, we are honored to present an address by a titan of physics, Barry Barish.

Winners of the prestigious $1 million Kavli Prizes were announced May 31, 2012 live via satellite from the Norwegian Academy of Science and Letters in Oslo.