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At a ceremony Monday at the White House, President Trump defended his racist tweets against Democratic lawmakers. The language used in that tweet has a long history connected with nativist political movements in the U.S. Chip Somodevilla/Getty Images hide caption

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Chip Somodevilla/Getty Images

'Go Back Where You Came From': The Long Rhetorical Roots Of Trump's Racist Tweets

When the president told several young congresswomen of color to "go back" to where they came from, he borrowed nativist language about as old as the country itself. Here's a little history.

Container ships and other maritime vessels currently run on pollutant-intensive heavy fuel oil. The world's largest container-shipping company, Maersk, has promised to make its operations zero carbon by 2050. Doing so will require using new fuels such as hydrogen. John Greim/LightRocket via Getty Images hide caption

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John Greim/LightRocket via Getty Images

The Dawn Of Low-Carbon Shipping

The shipping industry is starting to move away from pollutant-intensive heavy fuel oil. Scientists and private companies are betting on a clean replacement technology: hydrogen fuel cells.

(Left) The Apollo 11 command and service modules are mated to the Saturn V lunar module adapter. (Right) The Apollo 11 spacecraft command module is loaded aboard a Super Guppy Aircraft at Ellington Air Force Base for shipment to the North American Rockwell Corp. NASA hide caption

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NASA

The Making Of Apollo's Command Module: 2 Engineers Recall Tragedy And Triumph

It was the only part of the Apollo 11 spacecraft that came back from the moon. Designing, testing and building it was a monumental task, according to two engineers who were part of the effort.

Medicare Advantage plans, administered by private insurance firms under contract with Medicare, treat more than 22 million seniors — more than 1 in 3 people on Medicare. Roy Scott/Ikon Images/Getty Images hide caption

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Roy Scott/Ikon Images/Getty Images

Records Show Medicare Advantage Plans Overbill Taxpayers By Billions Annually

Kaiser Health News

The federal government wants to deploy several new tools for catching insurers that have overcharged Medicare $30 billion in last three years alone. But the insurance industry is balking.

A scene in the show 13 Reasons Why that had shown actress Katherine Langford's character taking her own life has been edited out. Richard Shotwell/Richard Shotwell/Invision/AP hide caption

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Richard Shotwell/Richard Shotwell/Invision/AP

Netflix Cuts Controversial Suicide Scene From '13 Reasons Why'

The show is centered on the suicide of a teenage girl, and the first season's finale shows her taking her own life. Several organizations raised concerns that it could romanticize suicide.

The town of Harlech in Wales is officially home to the world's steepest street, according to Guinness World Records. Dea / S. Vannini/De Agostini via Getty Images hide caption

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Dea / S. Vannini/De Agostini via Getty Images

King Of The Hill: Guinness World Records Crowns Wales Street World's Steepest

The town of Harlech in Wales has ousted Dunedin, New Zealand, for the title of world's steepest street. Residents are elated about the title, which required a lengthy verification process.

Native Hawaiians have objected to construction of the Thirty Meter Telescope for years. On Monday, about 300 protesters arrived to block workers from accessing the site on a mountain believed to be sacred land. TMT via AP hide caption

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TMT via AP

Hawaii Protesters Block Access Road To Stop Construction Of Massive Telescope

Native Hawaiians chained themselves to a grate in a road to stop work on the controversial Mauna Kea project on what they say is sacred land. Development is scheduled to begin this week.

Jim Bridenstine became NASA administrator in April 2018. He says that before the space agency can send humans to Mars, it has to get them back to the moon. Olivia Falcigno/NPR hide caption

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Olivia Falcigno/NPR

50 Years After Apollo 11 Moon Landing, NASA Sets Its Sights On Mars

As the world looks back at the Apollo mission, NASA Administrator Jim Bridenstine looks ahead to the "moon shot" of the modern era: landing a human on Mars.

50 Years After Apollo 11 Moon Landing, NASA Sets Its Sights On Mars

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Musicians walk on a crosswalk painted like a piano Outside the Eastman School of Music in Rochester, N.Y. Increasingly, urban designers and transportation planners say this kind of art — colorful crosswalks and engaging sidewalks — leads to safer intersections, stronger neighborhoods, and better public health. Brett Dahlberg/WXXI hide caption

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Brett Dahlberg/WXXI

Walking On Painted Keys: Creative Crosswalks Meet Government Resistance

WXXI News

Intersection art makes streets more inviting and can remind motorists to respect crosswalks and bike lanes. But the federal government says the designs can also be distracting.

Walking On Painted Keys: Creative Crosswalks Meet Government Resistance

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A sign at the Miami International Airport shows cancelled flights after American Airlines initially grounded its Boeing 737 Max planes in March. Joe Raedle/Getty Images hide caption

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Joe Raedle/Getty Images

2 Major Airlines Cancel Thousands Of Boeing Max Flights Through November

The Federal Aviation Administration found a new problem in Boeing's max plane last month, so it will like be several more months before the troubled plane is certified to fly passengers again.

Airlines Cancel Boeing Max Flights Into November; Holiday Flights Could Be Next

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Huge crowds turn up each week to watch a game of baseball on a woodchip field, where the players wear snowshoes. Mackenzie Martin/WXPR hide caption

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Mackenzie Martin/WXPR

Crowds Gather Each Week In Wisconsin To Watch Their Teams Play Ball — In Snowshoes

Snowshoe baseball commentator Jimmy Soyck says you can't actually run in snowshoes. It's all in the shuffle.

Crowds Gather Each Week In Wisconsin To Watch Their Teams Play Ball — In Snowshoes

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James Fields Jr. killed a woman after he drove a car into a group of protesters in Charlottesville, Va., in 2017. On Monday, a judge in Virginia sentenced him to life in prison. Albemarle-Charlottesville Regional Jail via Getty Images hide caption

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Albemarle-Charlottesville Regional Jail via Getty Images

Neo-Nazi James Fields Gets 2nd Life Sentence For Charlottesville Attack

The Virginia court's sentence is largely symbolic. Last month, a federal judge sentenced Fields to life in prison for killing a woman protesting a white nationalist rally in 2017.

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