How many stars are in the known universe? What's the oldest spacecraft still in orbit? How massive is Jupiter? Watch our weekly Random Space Fact series to find answers to these kinds of questions - at least one space fact and one laugh in one minute.
Planetary Society Director of Science and Technology Dr. Bruce Betts is teaching an online introductory college Astronomy class during Spring semester 2017. Find out how to watch and learn more about your place in space. The course is through California State University Dominguez Hills.