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Science & Space

The most popular blog posts about science & space on Hacker News. 2,419 posts.

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1389

Physicists Magnetize a Material with Light

MIT physicists created a long-lasting magnetic state in a material, using only light. The results provide a new way to control and switch antiferromagnetic materials, which are of interest for their potential to advance information processing and memory chip technology.

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Manganese is Lyme disease's double-edge sword

Lyme disease is caused by the bacterium Borrelia burgdorferi, which relies on the antioxidant manganese to protect it from its host’s immune system. Both removing or adding too much manganese weakens the bacteria. Disrupting this balance could lead to new treatments for Lyme disease.<br />

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Double trouble: ESA's Gaia hit by micrometeoroid and solar storm

Launched in December 2013, ESA’s Gaia spacecraft is on a mission to map the locations and motions of more than a billion stars in the Milky Way with extreme precision.But it’s not easy being a satellite: space is a dangerous place. In recent months, hyper-velocity space dust and the strongest solar storm in 20 years…