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After an historic all-female spacewalk, the astronaut has a moon dream

While both women realize how important and historic their spacewalk was, they also hope it becomes commonplace and is not considered a big deal in the future. Meir and Koch have trained together for more than six years and were both elected astronauts in 2013. Their astronaut class was the first to include 50% women and 50% men. "We are …

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How the butterfly discovered daylight

Once upon a time, perhaps some 300 million years ago, a small stream dwelling insect crawled out of the water like a caddis fly and began living on mosses and other land plants. Although dull in appearance, the creature had a glorious future: it would become ancestors of the 160,000 species of moths and butterflies that inhabit the earth today. …

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Remarkable Composite Metal Foam Outperforms Aluminum for Use in Aircraft Wings

Composite metal foam, with ruler for scale. Credit: Afsaneh Rabiei The leading edges of aircraft wings have a very demanding set of characteristics. New research shows that a combination of steel composite metal foam (CMF) and epoxy resin has more desirable characteristics for use as a leading-edge material than the aluminum currently used in widespread use. “We call our hybrid …

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"We should be worried": The study confirms fear that intensive ocean acidification will end in ecological collapse

The acidification of the Earth's sea, which climate scientists warn is a dangerous effect of continued carbon dioxide emissions, was behind a mass extinction event 66 million years ago, according to a new study. Small-scale marine organisms survived the meteorite that hit the ground and wiped out the dinosaurs, according to researchers at the GFZ Geoscientific Research Center in Potsdam, …

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Time-lapse Captured from the International Space Station

In this week's questions, I show why we never know which stars have no planets. How we could prevent a disaster on earth and why foreigners can still be a threat to us. Check out more of Dustin Gibson's photographs at: https://www.instagram.com/gibsonpics/ 00:48 How many stars do planets not have? 02:29 Can we prevent a disaster? 05:16 No foreigners would …

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NASA's Lucy mission to study the Trojan asteroids clears critical milestone

NASA's Lucy mission, which will be the first space mission to study the Trojan asteroids, successfully completed its critical design review. According to the space agency, Lucy team members presented the completed mission design, showing that they have met all the technical challenges of the mission and are ready to begin building the actual hardware. At Lockheed Martin in Colorado …

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NASA needs new strategies to protect the solar system from terrestrial pollution, reports find

NASA has worked hard to prevent microbes from hooking rides on our spaceship and spreading around the solar system, but the agency's tactics are now probably outdated. A new report from describes the changes needed to modernize NASA's planetary protection policy and prevent our bacteria from polluting scientifically important targets like Mars. The new report released by the Independent Planetary …

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