Cepheid Variable Stars and the Cosmic Distance Ladder

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

The Constellations

A tour exploring what constellations are and why we can't see all of them at all times during the year.

X-Ray Sky

A brief tour of the X-Ray sky and a look at sources of high energy X-Rays... Read more about X-Ray Sky

WISE: Seeing the Invisible

Explore the Universe through the eyes of NASA's Wide-field Infrared Survey Explorer (WISE) spacecraft. WISE surveyed the entire sky in infrared light.... Read more about WISE: Seeing the Invisible

W5 Star Forming Region

Multiple Generations of Star Formation in the W5 region from Spitzer Space Telescope.... Read more about W5 Star Forming Region

Understanding the Moon's Phases

This Tour is designed to help users understand the cause of Moon phases and be able to predict where the Moon is relative to the Sun and Earth during a particular phase, and vice versa.... Read more about Understanding the Moon's Phases

Search for Extra-Solar Planets

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

Pluto

A visit to Pluto using WWT's new 3D mode, showing some of the reasons why it was reclassified as a dwarf planet.... Read more about Pluto

Over the Rainbow

A tour of Sloan Digital Sky Survey objects, highlighting features in their spectra.... Read more about Over the Rainbow

M82 Cigar Galaxy

Tour of M82 from the Hidden Universe... Read more about M82 Cigar Galaxy

John Huchra's Universe

John Huchra, former president of the American Astronomical Society, passed away on October 8, 2010.

John’s colleagues at the Harvard-Smithsonian Center for Astrophysics, in collaboration with the creators of WorldWide Telescope at Microsoft Research, have created a new, interactive, WWT Tour to honor John and his career.

The Tour primarily focuses on John’s quest to map the Universe.... Read more about John Huchra's Universe

Galileo's New Order

To commemorate the 400th anniversary of Galileo's discovery of moons around Jupiter, we have produced a WWT Tour recreating these historic observations. This is an example of the kind of teaching Ambassadors will be able to do using WWT.... Read more about Galileo's New Order

Eta Carina Nebula

A brief tour of the Eta Carina Nebula from the Hubble Advanced Camera for Surveys.... Read more about Eta Carina Nebula

Dust and Us

"Dust & Us" is a brief tour of the dark regions in galaxies that form stars and planets. This tour gives a new perspective on how important dust, which we normally think of as a nuisance, is to creating planets like the one upon which we live.... Read more about Dust and Us

Center of the Milky Way

Tour of the radio wavelength view of the inner Galaxy. We start by reviewing all-sky views in various wavelenghts and then zoom into a radio view of Sagittarius A and finally into Sagittarius A*, the location of the supermassive black hole at the Galactic Center.... Read more about Center of the Milky Way

Scientific Practices