Leaving Earth

What it would look like to leave planet Earth?

Millions of Stars in Omega Centauri

Globular star cluster Omega Centauri, also known as NGC 5139, is some 15,000 light-years away.

Nearby Spiral Galaxy NGC 4945

Large spiral galaxy NGC 4945 is seen edge-on near the center of this cosmic galaxy portrait.

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?

Lenticular Clouds over Mount Etna

What's happening above that volcano?

Human as Spaceship

You are a spaceship soaring through the universe.

1901 Photograph: The Orion Nebula

By the turn of the 20th century advances in photography contributed an important tool for astronomers.

The Elephant's Trunk Nebula in Cepheus

Like an illustration in a galactic Just So Story!

The Perseids and the Plough

Despite interfering moonlight, many denizens of planet Earth were able to watch this year's Perseid meteor shower.