Bright Meteor, Starry Sky
Plowing through Earth’s atmosphere at 60 kilometers per second, this bright perseid meteor streaks along a starry Milky […]
NASA
Rings Around the Ring Nebula
The Ring Nebula (M57), is more complicated than it appears through a small telescope. The easily visible central […]
M57: The Ring Nebula from Hubble
Except for the rings of Saturn, the Ring Nebula (M57) is probably the most famous celestial circle. Its […]
Perseid Meteor, Red Sprites, and Nova RS Oph
This was an unusual sky. It wasn’t unusual because of the central band the Milky Way Galaxy, visible […]
Perseid Rain
Comet dust rained down on planet Earth last week, streaking through dark skies in the annual Perseid meteor […]
Island Universe, Cosmic Sand
Stars in our own Milky Way Galaxy are scattered through this eye-catching field of view. From the early […]
A Perfect Spiral
If not perfect then this spiral galaxy is at least one of the most photogenic. An island universe […]
A Beautiful Trifid
The beautiful Trifid Nebula is a cosmic study in contrasts. Also known as M20, it lies about 5,000 […]
Mammatus Clouds over Saskatchewan
When do cloud bottoms appear like bubbles? Normally, cloud bottoms are flat. This is because moist warm air […]
Fire in Space
What does fire look like in space? In the gravity on Earth, heated air rises and expands, causing […]