<p>We ask Caity from our Charles Hayden Planetarium what the universe's speed limit is, and how that limits our ability to explore the beyond the solar system.</p>

What‘s the Fastest Thing in the Universe? Part Two

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.