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Astronomy Picture Of the Day (APOD)
Cocoon Nebula Wide Field
25.10.2022
When does a nebula look like a comet? In this crowded starfield, covering over two degrees within the high flying constellation of the Swan (Cygnus), the eye is drawn to the Cocoon Nebula.
Jupiter Rotates as Moons Orbit
24.10.2022
Jupiter and its moons move like our Sun and its planets. Similarly, Jupiter spins while its moons circle around. JupiterBs rotation can be observed by tracking circulating dark belts and light zones. The Great Red Spot, the largest storm known, rotates to become visible after about 15 seconds in the 48-second time lapse video.
Clouds Around Galaxy Andromeda
23.10.2022
What are those red clouds surrounding the Andromeda galaxy? This galaxy, M31, is often imaged by planet Earth-based astronomers. As the nearest large spiral galaxy, it is a familiar sight with dark dust lanes, bright yellowish core, and spiral arms traced by clouds of bright blue stars.
Milky Way and Zodiacal Light over Australian Pinnacles
22.10.2022
What strange world is this? Earth. In the foreground of the featured image are the Pinnacles, unusual rock spires in Nambung National Park in Western Australia. Made of ancient sea shells (limestone), how these human-sized picturesque spires formed remains a topic of research. The picturesque panorama was taken in 2017 September.
NGC 1499: The California Nebula
21.10.2022
Drifting through the Orion Arm of the spiral Milky Way Galaxy, this cosmic cloud by chance echoes the outline of California on the west coast of the United States. Our own Sun also lies within the Milky Way's Orion Arm, only about 1,500 light-years from the California Nebula.
Andromeda in Southern Skies
20.10.2022
Looking north from southern New Zealand, the Andromeda Galaxy never gets more than about five degrees above the horizon. As spring comes to the southern hemisphere, in late September Andromeda is highest in the sky around midnight though.
Pillars of Creation
19.10.2022
A now famous picture from the Hubble Space Telescope featured these star forming columns of cold gas and dust light-years long inside M16, the Eagle Nebula, dubbed the Pillars of Creation. This James Webb Space Telescope NIRCam image expands Hubble's exploration of that region in greater detail and depth inside the iconic stellar nursery.
A Galaxy Beyond Stars, Gas, Dust
18.10.2022
Do we dare believe our eyes? When we look at images of space, we often wonder whether they are "real", and just as often the best answer varies. In this case, the scene appears...
Milky Way Auroral Flower
17.10.2022
Could the stem of our Milky Way bloom into an auroral flower? No, not really, even though it may appear that way in todayBs featured all-sky image. On the left, the central plane of our home galaxy extends from the horizon past the middle of the sky.
X Ray Rings Around a Gamma Ray Burst
16.10.2022
Why would x-ray rings appear around a gamma-ray burst? The surprising answer has little to do with the explosion itself but rather with light reflected off areas of dust-laden gas in our own Milky Way Galaxy.
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