Other Solar Systems

This is a tour developed by Professor Alyssa Goodman at Harvard University. This tour introduces cepheid variable stars and how the relationship between their pulsation periods and their luminosities has helped to estimate cosmic distances. Credits Alyssa...

Explains how astronomers are able to detect extrasolar planets and some findings from the TrES project and the promise of the Kepler telescope. Narrated and produced by Sanjana Sharma. This tour has a nice animation sequence that shows how an orbiting...

Star and planet formation in the Orion Nebula as shown in images from the Hubble Space Telescope. Credits Frank Summers