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News Release 272 of 292

January 7, 1993 12:00 AM (EST)

News Release Number: STScI-1993-03

Hubble Space Telescope Discovers a Double Nucleus in the Core of an Active Galaxy

An American Astronomical Society Meeting Release

January 7, 1993: Astronomers announced today the discovery of a double nucleus in the active galaxy Markarian 315. The discovery was made from images taken by NASA's Hubble Space Telescope. The findings may solve a decade-old mystery about the nature of a jet-like feature in Markarian 315, a so-called Seyfert galaxy, and appear to confirm one mechanism for producing an active galactic nucleus. (Seyfert galaxies are spiral galaxies with very bright nuclei that may be powered by massive black holes that are accreting matter.)

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Photo Credit: J. MacKenty (STScl), and NASA.