<p>We ask Dan Distel, a marine biologist at Northeastern, about an amazing discovery off the coast of Alabama: an ancient underwater forest.</p>

How Many Colors Are in the Rainbow, Really?

We hear amazing questions in the exhibit halls of the Museum of Science, Boston. Do woodpeckers get headaches? How many colors are in the rainbow? Who gets to drive the Mars rovers? Pulsar features short interviews with our education staff along with scientists, engineers, and experts from around the world in order to find the answers.