Octave Scalpel

Octave Scalpel

Octave Scalpel
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Super Massive Black Holes Explained

Super Massive Black Holes by PHD Comics. Sagittarius A*, the super massive black hole at the center of the Milky Way, has a mass million times the mass of our sun, and a diameter equal to the distance between the sun and Mercury.

Prague

Munich, Germany~Munich is the capital and the largest city of the German state of Bavaria. It is located on the River Isar north of the Bavarian Alps. Munich is the third largest city in Germany, behind Berlin and Hamburg.

Located on the western edge of the Sahara desert at central Mauritania in northwest Africa, there is a giant circle called Richat Structure, whose diameter ranges as long as 38km. It is made of quartzite.

Earth has Bullseye ~ This prominent circular feature, known as the Richat Structure, in the Sahara desert of Mauritania is often noted by astronauts because it forms a conspicuous bull's-eye on the otherwise rather featureless expanse of the desert.

Mean cub with meat

Last picture: a lion cub eating a bone and seemingly not willing to share!

The ghostly Boomerang Nebula, called the 'coldest place in the universe,' reveals its true shape in this image from the giant ALMA radio telescope.

The Boomerang nebula, called the 'coldest place in the universe,' reveals its true shape to the Atacama Large Millimeter/submillimeter Array (ALMA) telescope. The background blue structure, is seen in visible light by NASA's Hubble Space Telescope.