ŞABAN

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It's #BlackFriday, but for us, it's the 2nd annual #BlackHoleFriday. Today, we'll post pics & info about black holes. Looking for a size large this #BlackFriday? Here's a supermassive black hole. This artist's concept illustrates a supermassive black hole with millions to billions times the mass of our sun. Supermassive black holes are enormously dense objects buried at the hearts of galaxies. (Smaller black holes also exist throughout galaxies.) In this illustration, the supermassive black hole at the center is surrounded by matter flowing onto the black hole in what is termed an accretion disk. This disk forms as the dust and gas in the galaxy falls onto the hole, attracted by its gravity. Also shown is an outflowing jet of energetic particles, believed to be powered by the black hole's spin. The regions near black holes contain compact sources of high energy X-ray radiation thought, in some scenarios, to originate from the base of these jets. This high energy X-radiation lights up the disk, which reflects it, making the disk a source of X-rays. The reflected light enables astronomers to see how fast matter is swirling in the inner region of the disk, and ultimately to measure the black hole's spin rate. Image credit: NASA/JPL-Caltech

Dance of the Night

Trapped

Louvre Pyramid by night

the rock

Bastia

The meteorologist Vyacheslav Korotki lives alone at an isolated Arctic outpost, measuring the temperatures, the snowfall, and the winds. Evgenia Arbugaeva, a photographer who grew up in the Arctic town of Tiksi, spent two extended stays with him. For more photos, visit newyorker.com.

Wintry Country Road

Celestial Reflections

A Lonely Lighthouse (Workflow Explanation Included)