Monday 20 March 2017

Hubble's glittering frisbee galaxy

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Hubble caught a cross-section of NGC 1448, a spiral galaxy located about 50 million light-years from Earth.
via Science Daily
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The Aurora Tree

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Yes, but can your tree do this? Pictured is a visual coincidence between the dark branches of a nearby tree and bright glow of a distant aurora. The beauty of the aurora -- combined with how it seemed to mimic a tree right nearby -- mesmerized the photographer to such a degree that he momentarily forgot to take pictures. When viewed at the right angle, it seemed that this tree had aurora for leaves! Fortunately, before the aurora morphed into a different overall shape, he came to his senses and capture the awe-inspiring momentary coincidence. Typically triggered by solar explosions, aurora are caused by high energy electrons impacting the Earth's atmosphere around 150 kilometers up. The unusual Earth-sky collaboration was witnessed earlier this month in Iceland.

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B-ring it on!

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Space Science Image of the Week: Cassini reveals extraordinarily fine detail in one of Saturn’s rings
via ESA Space Science
http://www.esa.int/spaceinimages/Images/2017/03/Saturn_s_B-ring_close-up