The rotation of Venus

Venus is covered in a thick layer of clouds, one reason that it appears so bright in the sky. Ancient astronomers had a good idea of what (since Copernicus) we know as its orbital period; the modern measurement is that Venus ...

Speed bumps on German road to lower emissions

Germany has in recent years polished its "green" image abroad, but the country was only recently forced to admit it will miss a self-imposed 2020 climate target.

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