What happened to the Apollo goodwill moon rocks?

US President Richard Nixon gave moon rocks collected by Apollo 11 and Apollo 17 astronauts to 135 countries around the world and the 50 US states as a token of American goodwill.

The hidden structure of the periodic system

The periodic table of elements that most chemistry books depict is only one special case. This tabular overview of the chemical elements, which goes back to Dmitri Mendeleev and Lothar Meyer and the approaches of other chemists ...

Heat wave hits Iraq—and sparks begin to fly

Hospital ventilators shut down, football matches with obligatory water breaks and food spoiling in fridges without power: Iraq's notorious summer has arrived.

'Moon Rock Hunter' on quest to track down Apollo gifts

After Neil Armstrong took a "giant leap for mankind" on the Moon nearly 50 years ago and collected rocks and soil along the way, Richard Nixon presented lunar souvenirs to every nation—135, at the time.

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