"On this day in 4977 B.C., the universe is created, according to German mathematician and astronomer Johannes Kepler, considered a founder of modern science," notes History. Listening to Carl Sagan explain Kepler's laws of planetary motion is like listening to Bob Ross paint happy little trees or Kermit speculate about rainbows; each subject matter reasonably confounding with a quiet narrator offering an even voice to soothe the medicine as it goes down. more ›

As LAist has mentioned in the past, the Jet Propulsion Laboratory's Annual Open House is one of the best free events in town. This year, kids and adults alike enjoyed exhibits, demonstrations, 3-D Mars photos, dancing robots and more. Plus, it's not every day you get to ask a rocket scientist a question! more ›