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Delhi becomes “gas chamber” as air pollution reaches ludicrous levels
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Enlarge / Indian visitors walk through the courtyard of Jama Masjid amid heavy smog in the old quarters of New Delhi on November 8, 2017. SAJJAD HUSSAIN/ AFP/ Getty Images)

With calm winds, seasonal crop burns, and the usual vehicle and industrial emissions, an extr...

arstechnica.com/?p=1202377
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The future is here: Genetically engineered stem cells save a patient
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The pink layer in the image is the extracellular matrix, which helps the epidermis stay attached to the underlying dermis. (credit: University of Chicago)

The genetic disorder

arstechnica.com/?p=1201529
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Lamar Smith, chair of House Science Committee, leaving Congress
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Enlarge / A protester at Science March Austin shares his frustration with Lamar Smith. (credit: Nathan Mattise)

Lamar Smith (R-Texas) today acknowledged he is retiring at the end of his current term. Smith was one of the key sponsors of the Stop Online Piracy Act (SOPA), whi...

arstechnica.com/?p=1198791
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The soon-to-be-famous object at the Solar System’s edge needs a name
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Enlarge / One artist’s concept of Kuiper Belt object 2014 MU69, the next flyby target for NASA’s New Horizons mission. (credit: NASA/JHUAPL/SwRI/Alex Parker)

A boy named Sue. A girl named Beulah. These are some of the unfortunate names a child can have today. But suc...

arstechnica.com/?p=1200783
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Check out the genes on this huge ‘shroom
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Enlarge (credit: Missouri Department of Conservation)

As is the case with most titles that end in “-est,” the competition for The World’s Large...

arstechnica.com/?p=1197381
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Ringing black holes may glow in the dark
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Enlarge (credit: NASA/ESA)

Ever since LIGO (and now Virgo) started picking up gravitational waves, theorists have gone nuts. The volume of papers on exci...

arstechnica.com/?p=1201405
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Dinosaurs kept mammals in the dark
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Enlarge / Big eyes help you avoid dinosaurs. (credit: Thach Mai Hoang)

Most mammals are nocturnal, but even those that are not have eyes that are better suited to dim light. Those eyes are mor...

arstechnica.com/?p=1200973
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Study: Nearly 70% of online CBD marijuana extracts tested were mislabeled
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Enlarge / This dark oil is the pure concentrated form of cannabis extracted in numerous different ways. (credit: Getty | NurPhoto)

With 29 states and the District of Columbia having now legalized medical mari...

arstechnica.com/?p=1200961
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CO₂ benefits of regrowing forests nothing to shake a stick at
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Enlarge (credit: Patrick Shepherd/CIFOR)

It’s a common suggestion that we should just plant trees to suck CO2 out of the atmosphere, but this isn’t quite the solution it may seem. ...

arstechnica.com/?p=1191447
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On Monday, SpaceX seeks to double its record for annual launches
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Enlarge / The Falcon 9 rocket and Koreasat-5A have gone vertical on Pad 39A in Florida. (credit: SpaceX)

SpaceX has launched, on average, about 1.5 times per month during this year. From that perspective, the company's 16th launch of 2017 may not seem all that spectacular. After all, sending so...

arstechnica.com/?p=1196183