When did humans first become astronomers? We can’t be sure, but there are indications that we’ve been astronomers for at least 17,000 years.
Teapot Star
A new star known as a nova has appeared in the constellation Sagittarius (aka the teapot). It’s one of the few novas that is visible with the naked eye.
Ringer
The Cassini probe can observe occultations of stars by Saturn’s rings to produce images of distant stars.
E.T. Phone Home
It’s a popular idea that our television shows could be seen by aliens light years away, but our signals aren’t quite that clear.
Light in Motion
From the light of our galaxy we can see not only what’s there, but the dynamics of how it’s changing.
In the Air Tonight
Airglow is a faint glow of the night sky. It’s beautiful, but it’s bothersome for astronomers.
Take the Shot
This image was produced from a series of long exposures by Petr Horálek, and it captures a range of astronomical objects in a single image.
Slow Light
We think of light as being fast, but on a cosmic scale it’s incredibly slow.
Body in Motion
[av_video src=’http://vimeo.com/114099764′ format=’16-9′ width=’16’ height=’9′] Standing upon the Earth, we feel at rest. The Sun rises and sets, the stars drift across the night sky. The very universe spins around us. But that’s only how it appears.