Astronauts who’ve lived on the International Space Station and “walked” in space tell all: what it’s like to ride on a space ship, and to eat, sleep, exercise, and even do science—in space.

How far would you go to improve your focus, memory, or even learning ability? Would you be willing to strap on headgear that delivers electrical shocks to targeted areas of your brain? You may soon have that option.

How fast is the universe expanding? Two prominent approaches are finding different answers, propelling cosmology toward a crisis. Wendy Freedman, a renowned astronomer who has spent decades seeking the expansion …

2020 Nobel Laureate in Physics Andrea Ghez talks with Brian Greene about the details of the long journey to discovering a supermassive black hole in the center of our galaxy …

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 …

How does the brain retrieve memories, articulate words, and focus attention? Recent advances have provided a newfound ability to decipher, sharpen, and adjust electrical signals relevant to speech, attention, memory …