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NASA Chief Says Elon Musk Won't be Smoking Joints Publicly Again

NASA chief Jim Bridenstine elaborated this week on the reasons why the US space agency launched a safety review of SpaceX and Boeing, which are building spaceships for astronauts, including their workplace culture and drug-free policies.

Although NASA initially declined to confirm media reports that the review was prompted by SpaceX CEO Elon Musk's appearance on a filmed podcast in which he was smoking a joint, Bridenstine admitted Thursday, during a roundtable with reporters, it "was not helpful."

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China Scientist Defends Gene-Editing Babies as Trial Paused

The Chinese scientist who claims to have created the world's first genetically-edited babies defended the highly controversial procedure Wednesday, but announced a halt to the trial following an international outcry.

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Argentine Polo Turns to Genetics to Produce Champions

Are champions born, or raised? That's the question scientists in Argentina are trying to answer as they look to pinpoint the genes that make local horses the best in the world for playing polo.

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Cheers as Mars InSight Spacecraft Lands on Red Planet

Cheers and applause erupted at NASA's Jet Propulsion Laboratory on Monday as a waist-high unmanned lander, called InSight, touched down on Mars, capping a nearly seven-year journey from design to launch to landing.

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China Scientist Claims World's First Gene-Edited Babies

A scientist in China claims to have created the world's first genetically-edited babies, a move that would be a ground-breaking medical first but which has generated a barrage of criticism.

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With Each Rocket Launch, 'I Have Three Heart Attacks'

Kurt Eberly has hardly any hair and keeps losing more. His job is to launch, two times per year, a metallic cylinder packed with several tons of supplies, at high speeds toward the International Space Station, 250 miles (400 kilometers) above the Earth.

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Russia Stages First Soyuz Launch since Accident

A Russian Soyuz rocket with a cargo vessel blasted off Friday in the first launch to the International Space Station (ISS) since a manned accident last month.

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NASA Wants People on Mars Within 25 Years

Deadly radiation from the cosmos, potential vision loss, and atrophying bones are just some of the challenges scientists must overcome before any future astronaut can set foot on Mars, experts and top NASA officials said Tuesday.

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Super-Computer Brings 'Cloud' to Astronauts in Space

A super-computer at the International Space Station aims to bring "cloud" computing to astronauts in space and speed up their ability to run data analysis in orbit, Hewlett-Packard Enterprise said Thursday.

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NASA's Planet-Hunter Telescope, Kepler, Runs Out of Fuel

The U.S. space agency's Kepler space telescope has run out of fuel and is being retired after nine years, having helped discover 2,600 planets, some of which may hold life, officials said Tuesday.

The unmanned space telescope, which launched in 2009, revealed that billions of hidden planets are in space and revolutionized humanity's understanding of the universe, experts said.

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