Year of the Comet
Comet C/2011 L4 (PANSTARRS)

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Intro to the Sky

Learn the constellations, explore the Moon, tour the solar system, and much more!

The autumn sky

Become familiar with the constellations, learn how to read a star chart, find seasonal targets to observe like planets, comets, and meteor showers, and more.

Eagle Nebula

Learn the best ways to observe galaxies, star clusters, and nebulae, and get advice on which objects to target each night.

sun_full_disk_soho_09_14_1997

Explore the many bodies in the Sun's neighborhood, and learn how to observe meteor showers, the Moon, eclipses, and more.

Black hole video still

Understand the interesting and odd concepts — from the Big Bang to black holes — that make up science.

Sky-Guide-2012-cover
View the night sky using our annual Sky Guide.
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