This magazine article features an interview with Andrew Knoll, member of the Mars Exploration Rover science team and Fisher Professor of Natural History at Harvard University. His research focuses on ancient rocks on...

Galileo pioneered astronomy as the first person to study the celestial objects through a telescope. His observations, including the discovery of moons around Jupiter, helped revolutionize the way people thought about the...

Provided by the US Geological Survey Astrology Research Program, the Gazetteer of Planetary Nomenclature Web site contains nearly everything you ever wanted to know about naming the physical features of planets. The site...

This website, authored by Albert T. Hsui of the University of Illinois at Urbana-Champaign, provides information about the six geological processes that are either currently operating on Mars or have operated during...

This site provides you with all the information you need to observe satellites such as the International Space Station and the Space Shuttle, spectacular events such as the dazzlingly bright flares from Iridium...