Astronomy Picture Of the Day (APOD)
Edge On Galaxy NGC 58668.03.2016
Why is this galaxy so thin? Many disk galaxies are actually just as thin as NGC 5866, pictured above, but are not seen edge-on from our vantage point. One galaxy that is situated edge-on is our own Milky Way Galaxy.
Solar Eclipse Shoes in the Classroom
7.03.2016
The total solar eclipse of March 8/9 will be the only total eclipse in 2016. The New Moon's dark shadow traces a limited, narrow path across planet Earth for viewing the total phase, making landfall in Indonesia and mostly tracking across the Pacific Ocean.
Mystery Feature Now Disappears in Titan Lake
6.03.2016
What is that changing object in a cold hydrocarbon sea of Titan? Radar images from the robotic Cassini spacecraft orbiting Saturn have been recording the surface of the cloud-engulfed moon Titan for years. When...
A Solar Prominence Eruption from SDO
5.03.2016
One of the most spectacular solar sights is an erupting prominence. In 2011, NASA's Sun-orbiting Solar Dynamic Observatory spacecraft imaged an impressively large prominence erupting from the surface. The dramatic explosion was captured in ultraviolet light in the above time lapse video covering 90 minutes, where a new frame was taken every 24 seconds.
Cities at Night
4.03.2016
Looking toward the south from an altitude of 400 kilometers, this stunning snapshot from orbit finds bright lights of Tokyo and cities across central and southern Japan, planet Earth shining upward through broken clouds. The spacefaring perspective was captured last July by astronaut Scott Kelly during his stay on board the International Space Station.
Sculptor Galaxy NGC 134
3.03.2016
NGC 134 is probably not the best known spiral galaxy in the constellation Sculptor. Still, the tantalizing island universe is a clearly a telescopic treasure in southern skies. It shares a bright core, clumpy...
Moons and Jupiter
2.03.2016
Some of the Solar System's largest moons rose together on February 23. On that night, a twilight pairing of a waning gibbous Moon and Jupiter was captured in this sharp telescopic field of view.
Unusual Clouds over Hong Kong
1.03.2016
What's that in the sky? Earlier this month, in the sky high above Hong Kong, China, not just one unusual type of cloud appeared -- but two. In the foreground was a long lenticular cloud, a cloud that forms near mountains from uprising air and might appear to some as an alien spaceship.
NGC 3310: A Starburst Spiral Galaxy
29.02.2016
The party is still going on in spiral galaxy NGC 3310. Roughly 100 million years ago, NGC 3310 likely collided with a smaller galaxy causing the large spiral galaxy to light up with a tremendous burst of star formation.
Julius Caesar and Leap Days
28.02.2016
Today, February 29th, is a leap day - a relatively rare occurrence. In 46 BC, Julius Caesar, featured here in a self-decreed minted coin, created a calendar system that added one leap day every four years.
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