Take control of a Mars orbiter

Imagine directing the highest resolution camera orbiting the Red Planet. That wish can now be a reality.

Minting a celestial memory

Coins made as far back as 400 b.c. may honor solar eclipses. The tradition continued for two millennia.

How William Huggins shaped astrophysics

In 1868, an English astronomer pioneered a way to measure the motion of stars and other objects.

An NGC primer

The most extensive list of deep-sky objects has an unusual history and offers prime-number gems for observers.

We test Vixen’s HR eyepieces

These high-resolution eyepieces, specifically designed for planetary observing, minimize optical aberrations.


Sky this Month
StarDome and Path of the Planets

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