'We Don't Planet': Short Astrophysics Explainer Videos

Learn all about pulsars — neutron stars that seem to blink on and off superfast — in the 16th episode of the astrophysics-explainer video series "We Don't Planet."

Learn all about neutrinos — ghostly, chargeless particles that hardly ever interact with normal matter — in the 14th episode of the astrophysics-explainer video series "We Don't Planet."

Learn all about the parsec, one of the most commonly used distance measurements in astronomy, in the 10th episode of the astrophysics-video series "We Don't Planet."

Astronomers use a variety of methods to determine how far away celestial objects are from Earth. Learn about this "cosmic distance ladder" in the ninth episode of "We Don't Planet."