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A NASA/ESA Hubble Space Telescope image of the Lagoon Nebula, which is about 4,000 light-years away. It was taken by Hubble's Wide Field Camera 3 in February. The image was released to celebrate the 28th anniversary of Hubble. NASA, ESA, STScI hide caption

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NASA, ESA, STScI

A sign notifies people they are standing on the Hayward Fault in the children's zoo area of the Oakland Zoo in Oakland, Calif. Ben Margot/AP hide caption

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Ben Margot/AP

Quake On Bay Area Fault Could Kill Hundreds, USGS Simulation Shows

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Tim Ma prepares a duck confit salad at his restaurant, Kyirisan, in Washington, D.C. Ma says being mindful about reducing food waste is an integral part of his philosophy in the kitchen — not just for environmental reasons but also for profitability. Becky Harlan/NPR hide caption

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Becky Harlan/NPR

In the fall of 2017, left, Stream Tracker volunteer John Hammond found this creek near Fort Collins, Colo., to be dry. A year later, it was flowing again. Kira Puntenney-Desmond/Colorado State University hide caption

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Kira Puntenney-Desmond/Colorado State University

How Pokemon Inspired A Citizen Science Project To Monitor Tiny Streams

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West Delta 105 E is an oil-producing platform located a dozen miles off the Louisiana coast in the Gulf of Mexico. A 2014 explosion on the lower deck killed Jerrel "Bubba" Hancock. Bureau of Safety and Environmental Enforcement hide caption

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Bureau of Safety and Environmental Enforcement

8 Years After Deepwater Horizon Explosion, Is Another Disaster Waiting To Happen?

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Novelist Richard Powers moved to Tennessee after first visiting the Smoky Mountains — shown above, at sunset — for research. NPS hide caption

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NPS

Novelist Richard Powers Finds New Stories Deep In Old Growth Forests

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An illustration from 1870 shows Prehistoric men using wooden clubs and stone axe to fend off an attacks by a large cave bear. The cave bear (Ursus spelaeus) was a species of bear that lived in Europe during the Pleistocene and became extinct at the beginning of the Last Glacial Maximum, about 27,500 years ago. Mammoths can be seen in the background. British Library/Science Source hide caption

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British Library/Science Source

New Study Says Ancient Humans Hunted Big Mammals To Extinction

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In the control room of PJM Interconnection, employees monitor a power grid that stretches across the Midwest and Mid-Atlantic. PJM Interconnection hide caption

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PJM Interconnection

After Alert On Russian Hacks, Bigger Push To Protect Power Grid

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The idea behind "Musekeweya," or "New Dawn," is to do the opposite of what the government's notorious "hate radio" did 20 years earlier. Stephanie Aglietti/AFP/Getty Images hide caption

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Stephanie Aglietti/AFP/Getty Images

Rwandan Reconciliation Through Radio Soap Opera

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Researchers used a gene-carrying virus to fix blood stem cells that were then used to treat patients with beta-thalassemia. Power and Syred/Science Photo Library/Getty Images hide caption

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Power and Syred/Science Photo Library/Getty Images

There are variations in the appearance of severely bleached corals. Here, the coral displays pink fluorescing tissue signalling heat stress. ARC Centre of Excellence for Coral Reef Studies/ Gergely Torda hide caption

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ARC Centre of Excellence for Coral Reef Studies/ Gergely Torda

Climate Change Is Killing Coral On The Great Barrier Reef

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How do we make sense of all that chatter? Ilana Kohn/Getty Images hide caption

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Ilana Kohn/Getty Images

How People Learned To Recognize Monkey Calls Reveals How We All Make Sense Of Sound

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Eddies behind an A. salina shrimp swimming Isabel Houghton / J.R. Strickler /courtesy of Stanford / University of Wisconsin-Milwaukee hide caption

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Isabel Houghton / J.R. Strickler /courtesy of Stanford / University of Wisconsin-Milwaukee

Swarms Of Tiny Sea Creatures Are Powerful Enough To Mix Oceans, Study Finds

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The Thomas Fire advanced toward Santa Barbara County on Dec. 10, 2017, in Carpinteria, Calif. David McNew/Getty Images hide caption

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David McNew/Getty Images

As Climate Costs Grow, Some See A Moneymaking Opportunity

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Moke, a western lowland gorilla, was born on Sunday to great delight at the Smithsonian's National Zoo. Roshan Patel/Smithsonian's National Zoo hide caption

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Roshan Patel/Smithsonian's National Zoo

Floodwaters from Hurricane Harvey ripped apart fences and flooded Interstate 10 east of Houston last year. The San Jacinto Waste Pits Superfund site is on the other side of the road. Rebecca Hersher/NPR hide caption

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Rebecca Hersher/NPR