When (Neutron) Stars Collide


This illustration shows the hot, dense, expanding cloud of debris stripped from neutron stars just before they collided.

from NASA http://ift.tt/2hK4fP8

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Picture of the day for October 16, 2017

Bottom view of the interior of the main dome of the Jameh Mosque of Isfahan, Isfahan, Iran. The mosque, a UNESCO World Heritage site, is one of the oldest still standing buildings in Iran and it has been continuously changing its architecture since it was erected in 771 until the 20th century.. Learn more.

Picture of the day for October 15, 2017

Tatev monastery during sunset, Syunik Province, southeastern Armenia. The Armenian Apostolic monastery, built in the 9th century, hosted in the 14th and 15th centuries one of the most important Armenian medieval universities, the University of Tatev, which contributed to the advancement of science, religion and philosophy, reproduction of books and development of miniature painting.. Learn more.

Glorious Sunrise at the Start of a Spacewalk


NASA astronaut Mark Vande Hei exits the International Space Station on Oct. 10, 2017, for a spacewalk in this photograph taken by fellow spacewalker Randy Bresnik. Bresnik wrote, “A glorious sunrise greeted @Astro_Sabot and I at the start of our 2nd #spacewalk. His visor reflection shows the airlock hatch we came out.”

from NASA http://ift.tt/2hExaE6