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11
Apr
2017

Scientists 3D print some unearthly objects

Some of the items that were printed using simulated lunar and Martian dust

When and if we ever get astronauts back on the moon – or on Mars, for that matter – they presumably won't be bringing bags of cement or iron ore up there with them. Instead, when it comes to building things, they'll have to use the materials that are already on hand. With that in mind, scientists at Northwestern University recently set out to see what sort of items could be 3D printed using simulated lunar and Martian dust.

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Category: 3D Printing

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11
Apr
2017

Fish migration tracked via DNA in the water

The presence of fish such as cod can be detected via their DNA

Ordinarily, when biologists want to know what kinds of fish are migrating through the local waters, they have to do fishnet trawls. Not only is this approach labor-intensive, but it's also stressful for the fish that get netted and released. According to scientists at New York's Rockefeller University, however, there may be an easier and more fish-friendly alternative: just look for the animals' DNA in water samples.

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Category: Biology

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11
Apr
2017
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