Astronomers report `ghost galaxies'.

From: Knight Ridder/Tribune News Service | Date: January 7, 1999 | Copyright information

AUSTIN, Texas _ Galaxies that are almost invisible, even to astronomers, may hover throughout the universe like ghosts, scientists reported Wednesday.

Unlike our galaxy, the starry Milky Way, these galaxies contain so few bright stars that telescopes have a hard time spotting them. Instead, the galaxies may be made of mysterious dark matter, a befuddling substance that makes up perhaps 90 percent of the matter in the universe. Although astronomers can't see dark matter d...

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