What Yellowstone’s Thermal Springs looked like before humans contaminated …

What Yellowstone’s Thermal Springs looked like before humans contaminated …
News from Washington Post:

December 22 at 2:25 PM

This is a photograph of Morning Glory Pool from Aug. 23, 2012. (Joseph Shaw, Montana State University)

The bright, jewel-toned colors of Yellowstone’s Thermal Springs  have attracted many tourists since the area became the nation’s firs……………. continues on Washington Post

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NASA’s Black Hole X-Ray Hunter Could Solve Solar Mystery
News from Discovery News:

What’s the sun got in common with distant black holes? Well, at first glance, not a lot. But as this psychedelic solar portrait shows, there is one trait that the sun and black holes do have in common — the emission of high-energy X-rays.

Now NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR, has turned its gaze from distant black holes and focused on our sun, producing the most sensitive measurement of high-energy solar X-rays ever achieved.

GALLERY: NuSTAR Probes a Spinning Black Hole

Long before NuSTAR was even launched in 2012, solar physicist David Smith, of the University of California, Santa Cruz, approached the NASA NuSTAR mission team to request that the space telescope spend some of its observing time looking toward our nearest star.

Shifting focus from the high-energy X-rays generated by supermassive black holes in the centers of galaxies millions of light-years away to the sun may seem strange, but only NuSTAR has the capability of sensing the faint high-energy X-ray flashes generated by small-scale solar flares — known as nanoflares — deep inside the sun’s atmosphere, or corona.

……………. continues on Discovery News

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