This month, the two biggest planets in our solar system, Saturn and Jupiter, are coming together in the sky in a once-in-a-lifetime way called a Great Conjunction. It can be seen with telescopes, binoculars, and even the naked eye. Join us for a What's New in Aerospace live chat where we answer your questions about this astronomical event, which hasn't occurred for hundreds of years.

Tune in to the webcast on this page or watch on Facebook Live on the National Air and Space Museum Facebook page.

This program is made possible through the generous support of Boeing.

Space Astronomy Solar System
How to attend Presented Online