[Virginia Tech Department of Physics]

Frequently Asked
Astronomy and Physics Questions

Image of Ida and its moon Image of M31

This site was compiled by Dr. John Simonetti of the Department of Physics at Virginia Tech.

This FAQ site evolved from an exchange of e-mail messages with students in science classes at Blacksburg Middle School located at Blacksburg, Virginia, USA, the Earth, the Solar System, the Milky Way Galaxy, the Local Group, the Local Supercluster,...


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This site been selected for inclusion in the PSIgate Physical Sciences Information Gateway, a free online catalogue of high quality Internet resources in the physical sciences, compiled by the PSIgate team at the University of Manchester.


The image of the asteroid Ida and its moon Dactyl was taken by the Galileo spacecraft on March 23, 1994 ( NASA/JPL). The image of the Andromeda Galaxy and its satellite galaxies M32 and NGC205 is from The Electronic Universe Project.