Liquid mirrors can only point straight up. could magnets solve this problem?
When it comes to telescope mirrors, larger is generally better. The larger your main mirror, the more light you can capture ...
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NASA rover discovers liquid water 'ripples' carved into Mars rock — and it could rewrite the Red Planet's history
NASA's Curiosity rover photographed remnants of rippling waves in an ancient Martian lakebed, proving that the Red Planet had ...