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An artist's concept of a distant galaxy with an active quasar at its center shooting out bright jets of radiation above and below the galactic disc.
Photo Credit
NASA, ESA, Joseph Olmsted (STScI)
A quasar emits exceptional amounts of energy generated by matter falling into a supermassive black hole.

The earliest quasars yet observed are shedding light on the infancy of our cosmos

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A snorkeler with camera and note pad investigates a nearly bleached coral.
Photo Credit
Jeff Liang
Professor Deron Burkepile observes coral in the process of bleaching in the reefs around Moorea.
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A glowing circuit board
Photo Credit
Unsplash/Adi Goldstein
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Argentinian glacier as seen from ISS
Photo Credit
NASA
Argentina's Perito Moreno Glacier as seen from the International Space Station
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goat being fed grass
Photo Credit
Courtesy Image
Ruminants such as cows, sheep and goats host anaerobic gut fungi that can break down tough cell walls
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Two researchers, one male against exterior foliage background, one female against yellow studio background
Photo Credit
Courtesy Image
Carlos G. Levi and Thuc-quyen Nguyen
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A family, made up of a couple and their three children, in the Amazon stands together smiling.
Photo Credit
Michael Gurven
The Tsimane are an indigenous population in the Bolivian Amazon