DUDE. Don't look up, lest your eyeballs be sucked into any one of 2.5 MILLION supermassive black holes currently digesting spacetime. NASA announced today that they've pinpointed the suckers (ha!) using the Wide-field Infrared Survey Explorer (WISE) space telescope.
WISE scanned the whole sky twice in infrared light, completing its survey in early 2011. Like night-vision goggles probing the dark, the telescope captured millions of images of the sky. All the data from the mission have been released publicly, allowing astronomers to dig in and make new discoveries.
The latest findings are helping astronomers better understand how galaxies and the behemoth black holes at their centers grow and evolve together. For example, the giant black hole at the center of our Milky Way galaxy, called Sagittarius A*, has 4 million times the mass of our sun and has gone through periodic feeding frenzies where material falls towards the black hole, heats up and irradiates its surroundings. Bigger central black holes, up to a billion times the mass of our sun, may even shut down star formation in galaxies.
In one study, astronomers used WISE to identify about 2.5 million actively feeding supermassive black holes across the full sky, stretching back to distances more than 10 billion light-years away. About two-thirds of these objects never had been detected before because dust blocks their visible light. WISE easily sees these monsters because their powerful, accreting black holes warm the dust, causing it to glow in infrared light.
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| It's funny, but quasars always seem to come up as "extroverts" on the Myers Briggs. |
STAY IN SCHOOL, BECAUSE SCIENCE. IS. COOL.
Coverage:
- NASA (all images are from NASA, check out their page for more!)
- Universe Today
- io9.com did a live blog with recap
- Red Orbit
- Wired.com
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