Hubble in Space by Amherst Media

Author:Amherst Media
Language: eng
Format: epub
ISBN: 9781682033012
Publisher: Amherst Media
Published: 2018-02-08T05:00:00+00:00

Credit: NASA and ESA

Black Holes and Quasars

Quasars are typically extremely massive stars that emit large amounts of energy. There is evidence that each quasar contains a massive black hole, and that it’s a stage in the evolution of many large galaxies.

Difficult to See

Image Credit: NASA/JPL-Caltech/Roma Tre Univ.

This image of Galaxy NGC 1068 was composed of visible light from NASA’s Hubble Space Telescope, and high X-rays (magenta) from NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR. The X-ray is from an active supermassive black hole in the center of the galaxy. NGC 1068 is relatively close to our galaxy—about 47 million light-years away.

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