Astronomers find a sun-like star orbiting a nearby black hole

In 1916, Karl Schwarzchild theorized the existence of black holes as a resolution to Einstein's field equations for his theory of general relativity. By the mid-20th century, astronomers began detecting black holes for the ...

Hubble captures galaxy NGC 1961

The galaxy NGC 1961 unfurls its gorgeous spiral arms in this newly released image from NASA's Hubble Space Telescope. Glittering, blue regions of bright young stars dot the dusty spiral arms winding around the galaxy's glowing ...

Researchers succeed in coupling two types of electron-hole pairs

Two-dimensional van der Waals materials have been the focus of work by numerous research groups for some time. Standing just a few atomic layers thick, these structures are produced in the laboratory by combining atom-thick ...

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Hole

A hole is an opening in a solid.

Hole or holes may also refer to:

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