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An ancient, ravenous black hole has been hiding an 11-billion-year-old galaxy in its glare



Using the Hubble Space Telescope, a team of astronomers has used a tricky technique to discover an elusive 11-billion-year-old galaxy. Rather than observe the light this realm emits, they watched for the light it absorbs.

Just as we see a light bulb via the light it emits, astronomers usually observe galaxies using the light their stars emit. Galaxies put out light waves found across the entire electromagnetic spectrum, and  different telescopes are able to observe these cosmic objects in different wavelengths of light to form a full picture.

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