Changes with Time

A brief overview of selected features in the new Equinox Beta release. Credits Curtis Wong, Microsoft Research The full version of this tour can be downloaded here (by right-clicking) and viewed in the desktop version of WorldWide Telescope.

Multiple Generations of Star Formation in the W5 region from Spitzer Space Telescope. Credits Lori Allen, Xavier Koenig, Sanjana Sharma

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. The Tour encourages users to check their understanding at the end by...

Amateur astronomers love to observe galaxies. Although you need a dark site, you can spot some galaxies even through small telescopes. This tour shows you seven of the sky's finest galaxies. Credits Michael Bakich, Astronomy Magazine

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

Tour of M82 from the Hidden Universe Credits Robert Hurt

Our sun, and other stars like it, do not remain exactly as they appear now. Stellar lifetimes are much longer than ours, but like us, they progress though stages of life. The story of these stages tells us about the formation of the planets and their fate...

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...

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. Credits Alyssa...