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Astronauts Return to Earth from ISS amid U.S.-Russia Tensions

Two American astronauts and a Russian cosmonaut returned to Earth Thursday wrapping up a six-month mission at the International Space Station as tensions between Washington and Moscow threaten a rare area of cooperation. 

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Trio Win Nobel Chemistry Prize for Research Harnessing Evolution

U.S. scientists Frances Arnold and George Smith and British researcher Gregory Winter won the Nobel Chemistry Prize on Wednesday for applying the principles of evolution to develop enzymes used to make everything from biofuels to medicine.

Arnold, just the fifth woman to clinch chemistry's most prestigious honour since Marie Curie was honoured in 1911, won one half of the nine million Swedish kronor (about $1.01 million or 870,000 euros) award, while Smith and Winter shared the other half.

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Microplastics May Enter Foodchain Through Mosquitoes

Mosquito larvae have been observed ingesting microplastics that can be passed up the food chain, researchers said Wednesday, potentially uncovering a new way that the polluting particles could damage the environment.

Microplastics -- tiny plastic shards broken down from man-made products such as synthetic clothing, car tyres and contact lenses -- litter much of the world's oceans.

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NASA Counts Down to Launch of Laser Study of Ice Sheets

NASA counted down Saturday to the launch of its $1 billion ICESat-2 mission, using advanced lasers to uncover the true depth of the melting of Earth's ice sheets.

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SpaceX Announces New Plan to Send Tourist around Moon

SpaceX on Thursday announced a new plan to launch a tourist around the Moon using its Big Falcon Rocket (BFR), a massive launch vehicle that is being designed to carry people into deep space.

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NASA's Mars Rover Curiosity Snaps Dusty Selfie

NASA's Mars rover Curiosity has snapped a dusty but cool selfie.

NASA released the panorama this week. A thin layer of dust is visible on Curiosity , the result of a storm that enveloped Mars this summer. The darkish sky indicates dust still clogging the atmosphere in August, when the panorama was shot by Curiosity's mast camera. The rover had just drilled for a new rock sample.

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Russia Says Space Station Leak May be Sabotage

Russia launched checks Tuesday after its space chief said an air leak on the International Space Station last week could have been deliberate sabotage.

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Space Station Reports 'Leak', Crew Not in Danger

The International Space Station crew on Thursday was repairing a small "leak" most likely caused by a collision with a small meteorite, the head of the Russian space agency said, adding the incident presented no danger.

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UK Plans Own Satellite System after Galileo Exclusion

Britain will invest in the possible creation of its own satellite-navigation system, the UK government announced Wednesday, after being excluded from the EU's Galileo program because of Brexit.

At the same time, London said it was continuing to negotiate with the European Union about remaining in the Galileo program.

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India to Send Manned Mission to Space by 2022, Says Modi

India will send a manned mission into space by 2022, Prime Minister Narendra Modi announced Wednesday in a speech to the nation.

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