A Martian Eclipse: Phobos Crosses the Sun
What’s that passing in front of the Sun? It looks like a moon, but it can’t be Earth’s […]
astronomy
Spiral Galaxy NGC 1512: The Inner Rings
Most galaxies don’t have any rings — why does this galaxy have two? To begin, the bright band […]
Firefall by Moonlight
On certain dates in February, an elusive firefall can be spotted at sunset in Yosemite National Park, when […]
NGC 3572 and the Southern Tadpoles
This cosmic skyscape features glowing gas and dark dust clouds along side the young stars of NGC 3572. […]
NGC 3521: Galaxy in a Bubble
Gorgeous spiral galaxy NGC 3521 is a mere 35 million light-years away, toward the northern springtime constellation Leo. […]
Planets Over Egyptian Pyramid
The early morning planet parade continues. Visible the world over, the planets Jupiter, Venus, Mars and Saturn have […]
Mercurys Sodium Tail
That’s no comet. Below the Pleiades star cluster is actually a planet: Mercury. Long exposures of our Solar […]
Partial Solar Eclipse over Argentina
What’s happened to the Sun? Two days ago, parts of South America were treated to a partial solar […]
First Horizon Scale Image of a Black Hole
What does a black hole look like? To find out, radio telescopes from around the Earth coordinated observations […]
M44: The Beehive Cluster
A mere 600 light-years away, M44 is one of the closest star clusters to our solar system. Also […]