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Astronomy Picture Of the Day (APOD)
A Colorful Solar Corona over the Himalayas
11.01.2016
What are those colorful rings around the Sun? A corona visible only to Earth observers in the right place at the right time. Rings like this will sometimes appear when the Sun or Moon is seen through thin clouds.
Sun Storm: A Coronal Mass Ejection
10.01.2016
What's happening to our Sun? Another Coronal Mass Ejection (CME)! The Sun-orbiting SOHO spacecraft has imaged many erupting filaments lifting off the active solar surface and blasting enormous bubbles of magnetic plasma into space.
Barred Spiral Galaxy NGC 1300
9.01.2016
Big, beautiful, barred spiral galaxy NGC 1300 lies some 70 million light-years away on the banks of the constellation Eridanus. This Hubble Space Telescope composite view of the gorgeous island universe is one of the largest Hubble images ever made of a complete galaxy.
Prometheus and the F Ring
8.01.2016
In Greek myth Prometheus was a Titan, known for bringing fire from Mount Olympus. But in modern times the name is given to is a small moon of Saturn, orbiting just inside Saturn's F ring.
High Energy Andromeda
7.01.2016
A mere 2.5 million light-years away, the Andromeda Galaxy, also known as M31, really is just next door as large galaxies go. In this (inset) scan, image data from NASA's Nuclear Spectrosopic Telescope...
Comets and Bright Star
6.01.2016
This timely, telescopic, two panel mosaic spans about 10 full moons across planet Earth's predawn skies. Recorded as the year began from Tenerife, Canary Islands, near the top of the frame are the faint coma and tail of Comet Borrelly (P/19).
The Lagoon Nebula in Hydrogen Sulfur and Oxygen
5.01.2016
The majestic Lagoon Nebula is filled with hot gas and the home for many young stars. Spanning 100 light years across while lying only about 5000 light years distant, the Lagoon Nebula is so big and bright that it can be seen without a telescope toward the constellation of the Archer (Sagittarius).
Earthset from the Lunar Reconnaissance Orbiter
4.01.2016
On the Moon, the Earth never rises -- or sets. If you were to sit on the surface of the Moon, you would see the Earth just hang in the sky. This is because the Moon always keeps the same side toward the Earth.
A Starry Night of Iceland
3.01.2016
On some nights, the sky is the best show in town. On this night, the sky was not only the best show in town, but a composite image of the sky won an international competition for landscape astrophotography. The featured winning image was taken in 2011 over JЖkulsАrlСn, the largest glacial lake in Iceland.
Sky Lights in the New Year
2.01.2016
Triggered by the impact of a coronal mass ejection on New Year's eve, a moderate geomagnetic storm brought a celebration of sky lights to planet Earth's high latitudes yesterday. In this New Year's nightscape, the shimmering reddish curtains of aurora australis along a southern horizon are captured over Morgiana, SW Victoria, Australia.
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