Besides stars, the United States Navy uses quasars as beacons. Quasars are distant galaxies with supermassive black holes, surrounded by ... X-Ray Flashes from a Nearby Supermassive Black Hole ...

A black moon is a rare occurrence. The next Black Moon will occur on Aug. 23, 2025. This is considered a Black Moon under the definition of the third new moon in a season of four new moons.

Black salt, also known as kala namak or Himalayan black salt, is found in India. It comes from the salt mines of India, Pakistan, Bangladesh, Nepal, and other Himalayan locations. Black salt was ...

Black rice is that rare trifecta of delicious, healthy, and aesthetically pleasing. This dark-colored rice, which is a deep purple-black, has alternate names including purple rice, forbidden rice ...

But for every high-priced gaming console or whiz-bang piece of intellectual property, there are timeless hits such as the Hula-Hoop and the Koosh ball ... a major Black Friday run in 2021.