Simone Salerno

Simone Salerno

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Simone Salerno
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the sun

Quiet Corona and Upper Transition Region of the Sun This image, taken on Dec. 2013 by the AIA instrument on NASA's Solar Dynamics Observatory at 171 Angstrom, shows the current conditions of the quiet corona and upper transition region of the Sun.

Image: Solar activity

The sun erupted with a powerful solar flare on Tuesday, disrupting radio traffic and sending a blast of electrically charged particles our way. And there may be more blasts to come.

Caribbean Sea Viewed From the International Space Station | NASA

From the Earth-orbiting International Space Station, flying some 225 nautical miles above the Caribbean Sea in the early morning hours of July NASA astronaut Reid Wiseman photographed this north-looking panorama.

the crescent nebula

NGC also known as the Crescent Nebula, is a cosmic bubble about 25 light-years across, blown by winds from its central, bright, massive star. This colorful portrait of the nebula uses narrow band image data combined in the Hubble palette.