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Another one bites the dust – ROSAT satellite coming down soon
Jupiter and the waning gibbous moon shine between fall trees late last night. Photo: Bob King Darkness comes early in mid-October. For some, the disappearance of daylight is tough to handle. We feel...
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Jupiter’s poles crackle with volcano-induced auroras
Both a bar magnet (left) and Earth are surrounded by magnetic fields with north and south poles. Earth’s field is shaped by charged particles – electrons and protons – flowing from the sun called the...
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Nearby red dwarf star unleashes X100,000 superflare
The largest flare ever recorded on the sun, an X 45 event in November 2003, pales in comparison to the estimated X 100,000 flare seen on the red dwarf star DG CVn on April 23 by NASA’s Swift satellite....
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Milky Way’s black hole freaks out, has record flare
The main portion of this photo shows the area around Sagittarius A* where low, medium, and high-energy X-rays are red, green, and blue respectively. The inset box contains an X-ray movie of the region...
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The Mystery Of Pluto’s X-Ray Glow
At left we see Pluto in regular light photographed by the New Horizons probe during its July 2015 flyby. The blue glow at right is Pluto in X-ray light taken by the Earth-orbiting Chandra telescope at...
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Black Hole Keeps White Dwarf On A Tight Leash
This graphic features an artist’s impression of X9, a star in the closest orbit known around a black hole. This discovery was made using data from NASA’s Chandra X-ray Observatory (shown in the inset...
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