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Is there still Nazi loot hidden in buried bunkers on the Buchenwald concentration camp? Historians and scientists try to solve an old mystery.
The Secret Depots of Buchenwald
Wie klingt der Urknall – Botschaften vom Anfang des Universums
A milestone in physics: In 2015, scientists proved the existence of gravitational waves. These waves travel billions of light-years through space,...
What Did the Big Bang Sound Like?