Late Monday night, October 6-7, 2008, a tiny asteroid will enter Earth's atmosphere over Sudan, creating a spectacular explosion in the night sky.

Join our e-mail rapid-response network if you're ready, willing, and able to provide follow-up observations to professionals studying transient sky events.

A dedicated comet watcher has turned up something unexpected in images of Comet Encke taken with his 5-inch refractor: a trail of rubble strewn along the comet's orbit.

Somewhere in our galaxy a time bomb is ticking down. When the next supernova blows up, will you be ready?

Whether you scan the heavens with your eyes, a film camera, or a CCD chip, you've probably got what it takes to find the next galactic supernova.

The next time a massive star explodes in the Milky Way, it will cause a mad scramble among amateur and professional astronomers.

It has never been easier to explore the fascinating world of astronomical spectroscopy with backyard telescopes.

With this kit, you're ready to identify stars that explode.

Despite decades of observing in relative isolation from one another, professional and amateur astronomers began to come together in the 1980s.

The American Astronomical Society has assembled a team of experienced astronomers to foster pro-am partnerships.