SkyGuy Tom Vilot answers kids' questions about space.
Adaptive optics is a technique that allows ground-based telescopes to remove the blurring affects caused by Earth's atmosphere.
NASA. Near-Earth Objects (NEOs) are comets and asteroids that have been nudged by the gravitational attraction of nearby planets into orbits that allow them to enter the Earth's neighborhood.
Eric Weisstein's World of Science contains budding encyclopedias of astronomy, scientific biography, chemistry, and physics.
This web page is designed to give everyone an idea of what our universe actually looks like.
Popular Astronomy/Cosmology Links, from Caltech
Do you have a question about astronomy and space science? You've come to the right place.
While there are many non-beginner discussions on the mailing list, it is a friendly place that welcomes novices and more advanced beginners.
The Night Sky Notes is a place on our web site that we use to keep skywatchers up to date on what's up in the sky. Check back often to find out what's new and visible in our ever changing sky.
This applet shows the locations of the planets, stars, moon, and sun in the sky from any location and for any date and time. It may take 30 seconds or so for the applet to appear on your screen in the space below.
Simulates various solar system views
The awe-inspiring sight of a sky full of stars can render us speechless—and understandably so. Two very different entities are involved, and they're both rather mysterious.
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