Ellen Stofan is the NASA chief scientist, serving as principal advisor on the agency’s science programs. Prior to her appointment, Stofan was vice president of Proxemy Research and an honorary …

Join us for #YourDailyEquation with Brian Greene. Every Mon – Fri at 3pm EDT, Brian Greene will offer brief and breezy discussions of pivotal equations. Even if your math is a …

Dark energy is cosmology’s biggest mystery—an anti-gravitational force that confounds the conventional laws of physics. It makes up more than two-thirds of the cosmos, but science is still grappling to explain what dark energy actually is.

Time allows us to live in the moment, reflect on the past, plan for the future. It’s our most familiar, precious, yet mysterious commodity.

What if your brain at 77 were as plastic as it was at 7? What if you could learn Mandarin with the ease of a toddler or play Rachmaninoff without …

James Peebles, one of the world’s greatest cosmologists, has profoundly influenced our understanding of dark matter, dark energy, and the big bang, contributions that earned him the 2019 Nobel Prize …