How does your immune system work? - Emma Bryce
Adults ScienceThe immune system is a vast network of cells, tissues, and organs that coordinate your body's defenses against any threats to your health. Without it, you'd be exposed to billions of bacteria, viruses, and toxins that could make something as minor as a paper cut or a seasonal cold fatal. So how does it work? Emma Bryce takes you inside the body to find out.
Why do you need to get a flu shot every year? - Melvin Sanicas
Adults ScienceAll year long, researchers at hospitals around the world collect samples from flu patients and send them to top virology experts with one goal: to design the vaccine for the next flu season. But why do we need a new one every year? Vaccines for diseases like mumps and polio offer a lifetime of protection with two shots early in life; what's so special about the flu? Melvin Sanicas explains.
The first asteroid ever discovered - Carrie Nugent
Adults ScienceOver the course of history, we've discovered hundreds of thousands of asteroids. But how do astronomers discover these bits of rock and metal? How many have they found? And how do they tell asteroids apart? Carrie Nugent shares the story of the very first asteroid ever discovered and explains how asteroid hunters search for these celestial bodies.
Why is it so hard to cure cancer? - Kyuson Yun
Adults ScienceWe've harnessed electricity, sequenced the human genome, and eradicated smallpox. But after billions of dollars in research, we haven't found a solution for a disease that affects more than 14 million people and their families at any given time. Why is it so difficult to cure cancer? Kyuson Yun explains the challenges.
Why Is The Universe So Empty? (ft. PHD Comics!)
Adults ScienceWhy is the universe organized the way it is? And why is it so empty? From planets and stars to superclusters and galactic filaments, the universe's largest structures formed because of its smallest. In this special collaboration with PHD Comics, we'll learn how the earliest, quantumest blips seeded the structure of everything everywhere.