There are many types of telescopes used in astronomy, but X-ray telescopes offer a view of the cosmos that reveal just how much of a living ecosystem the universe is. …

Nobel Laureate and physicist Adam Riess and Brian Greene discuss the paradigm-shattering discovery that the expansion of the universe is accelerating, the role of dark energy, and more. This program …

Microbiologist Hazel Barton goes spelunking in sticky mud, camping underground, and rope climbing in a atrium—all to research cures for antibiotic-resistant diseases. Episode filmed live at the 2009 World Science …

Winners of the prestigious 2010 Kavli Prizes—biennial international awards that recognize seminal advances in astrophysics, nanoscience and neuroscience, and include a cash prize of $1 million in each field— were …

Language ranks among the most powerful influences on human existence. Even so, language presents many mysteries that are the subject of heated debate. Was there a rewiring of the human …

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.