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.... Read more about Cepheid Variable Stars and the Cosmic Distance Ladder
Explains how astronomers are able to detect extrasolar planets and some findings from the TrES project and the promise of the Kepler telescope.... Read more about Search for Extra-Solar Planets
