Orion Rising over Brazil

The next few months will be the best for seeing this familiar constellation as it rises continually earlier in the night.

Equinox: The Sun from Solstice to Solstice

Today is an equinox, a date when day and night are equal.

A Harvest Moon

Famed in festival, story, and song the best known full moon is the Harvest Moon.

The Spider Nebula in Infrared

Will the spider ever catch the fly?

The Moon and Jupiter over the Alps

What are those bright lights in the sky ahead?

M45: The Pleiades Star Cluster

Have you ever seen the Pleiades star cluster?

NGC 7129 and NGC 7142

The two appear separated by only half a degree on the sky, but they actually lie at quite different distances.

Leaving Earth

What it would look like to leave planet Earth?

The Orion You Can Almost See

Do you recognize this constellation?

Animation: Spiral Disk around a Black Hole

What would it look like to orbit a black hole?