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Astronomy Picture Of the Day (APOD)
Flight Through the Orion Nebula in Infrared Light
7.07.2021
What would it look like to fly into the Orion Nebula? The exciting dynamic visualization of the Orion Nebula is based on real astronomical data and adept movie rendering techniques. Up close and personal...
Saturn and Six Moons
6.07.2021
How many moons does Saturn have? So far 82 have been confirmed, the smallest being only a fraction of a kilometer across. Six of its largest satellites can be seen here in a composite...
IC 4592: The Blue Horsehead Reflection Nebula
5.07.2021
Do you see the horse's head? What you are seeing is not the famous Horsehead nebula toward Orion but rather a fainter nebula that only takes on a familiar form with deeper imaging. The main part of the here imaged molecular cloud complex is a reflection nebula cataloged as IC 4592.
The Face on Mars
4.07.2021
Wouldn't it be fun if clouds were castles? Wouldn't it be fun if the laundry on the bedroom chair was a superhero? Wouldn't it be fun if rock mesas on Mars were interplanetary monuments to the human face? Clouds, though, are floating droplets of water and ice.
Along the Milky Way
3.07.2021
You can't walk along the Milky Way. Still, under a dark sky you can explore it. To the eye the pale luminous trail of light arcing through the sky on a dark, moonless night does appear to be a path through the heavens.
AR2835: Islands in the Photosphere
2.07.2021
Awash in a sea of incandescent plasma and anchored in strong magnetic fields, sunspots are planet-sized dark islands in the solar photosphere, the bright surface of the Sun. Found in solar active regions, sunspots...
Perseverance Selfie with Ingenuity
1.07.2021
On sol 46 (April 6, 2021) the Perseverance rover held out a robotic arm to take its first selfie on Mars. The WATSON camera at the end of the arm was designed to take close-ups of martian rocks and surface details though, and not a quick snap shot of friends and smiling faces.
Simulation: Formation of the First Stars
30.06.2021
How did the first stars form? To help find out, the SPHINX computer simulation of star formation in the very early universe was created, some results of which are shown in the featured video. Time since the Big Bang is shown in millions of years on the upper left.
Orion Nebula: The Hubble View
29.06.2021
Few cosmic vistas excite the imagination like the Orion Nebula. Also known as M42, the nebula's glowing gas surrounds hot young stars at the edge of an immense interstellar molecular cloud only 1,500 light-years away.
A Paper Moon Solar Eclipse
28.06.2021
It may look like a paper Moon. Sailing past a canvas Sun. But those are not cardboard clouds. And it's not make believe.b The featured picture of an orange colored sky is real -- a digital composite of two exposures of the solar eclipse that occurred earlier this month.
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