Features

Dark Matter & The Fate of the Universe

Does dark matter matter? According to astronomers, it will determine whether the universe expands forever or collapses.

The Dark Side of the Galaxy

Does dark matter consist of invisible objects lurking in the halos of galaxies like the Milky Way? Astronomers are finding out.

Ghosts in the Cosmic Machine

Scientists are designing elaborate experiments to find out if dark matter consists of wimpy, ghostly particles.

Sky Almanac

October’s skies boast a quartet of planets and a rapidly-nearing comet.

Galileo’s Ganymede Surprise

Cherished theories fell by the wayside when Galileo flew by Jupiter’s largest satellite Ganymede.

Kodak’s Hot New Astrophoto Film

Kodak has developed a film that will establish new standards for amateur astrophotography.

See the Great Evening Comet

Comet Hale-Bopp is fast approaching, and can be easily seen with the unaided eye. It will sprout a tail before year’s end.

Sizing Up Starhopper

Celestron’s first entry into the realm of Dobsonians yields a stellar performer.

Departments

Behind the Scenes
Letters
AstroForum
AstroNews
Amateur News
Astronomy Books
AstroBytes
Meetings and Events
Resources & Photofacts
New Products
Advertiser Index
Reader Reports
Ultimate Exposure