Frequently referred to as the heaviest stable isotope of any element — and for all practical purposes it is — bismuth-209 is nonetheless slightly radioactive. This was first predicted by ...

The micromoon, occurring when the full moon reaches its farthest orbital point, appears subtly smaller than normal.

Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany ...

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