Black holes play hide-and-seek in low-luminosity radio galaxies

Every galaxy is thought to harbor a supermassive black hole in the center, or nucleus, of the galaxy, and in active galaxies this black hole is fed by infalling matter. This "central engine" is typically surrounded by dusty ...

NuSTAR finds clumpy doughnut around black hole

The most massive black holes in the universe are often encircled by thick doughnut-shaped disks of material. This doughnut material ultimately feeds and nourishes the growing black holes tucked inside. Until recently, some ...

Astronomy star gets his due for discovering the Kuiper Belt

Dressed as usual in jeans and Velcro-secured sneakers, University of California, Los Angeles astronomer David Jewitt sat at his desk recently and feigned concern: What, exactly, does one wear when accepting gold medals from ...

You're beautiful, Vesta

When UCLA's Christopher T. Russell looks at the images of the protoplanet Vesta produced by NASA's Dawn mission, he talks about beauty as much as he talks about science.

Dawn spacecraft approaches protoplanet Vesta

(PhysOrg.com) -- NASA's Dawn mission to the doughnut-shaped asteroid belt between Mars and Jupiter, which launched in September 2007, is now approaching Vesta, a protoplanet that is currently some 143 million miles ...

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Doughnut

A doughnut or donut ( /ˈdoʊnət/ or /ˈdoʊnʌt/) is a fried dough food and is popular in many countries and prepared in various forms as a sweet (or occasionally savory) snack that can be homemade or purchased in bakeries, supermarkets, food stalls, and franchised specialty outlets. They are usually sweet, deep-fried from a flour dough, and shaped in rings or flattened spheres that sometimes contain fillings. Other types of dough such as potato can also be used as well as other batters, and various toppings and flavorings are used for different types.

The two most common types are the toroidal ring doughnut and the filled doughnut, a flattened sphere injected with jam (or jelly), cream, custard, or other sweet fillings. A small spherical piece of dough may be cooked as a doughnut hole. Baked doughnuts are a variation cooked in an oven instead of being deep fried. Doughnut varieties are also divided into cake and risen type doughnuts.

Various doughnut incarnations are popular around the globe. Shapes include rings, balls, and flattened spheres, as well as ear shapes, twists and other forms. Not all doughnuts are sweet: in Southern India for instance, savory doughnuts called vadai are served.

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