Science

“Green” ammonia: Are we creating a new environmental problem?

Ammonia is considered an important helper in the energy transition. But how environmentally friendly is the nitrogen compound really? © armckw/ iStock ...

Battlefield prison island

On May 2, 1946, a failed breakout attempt developed into the “Battle of Alcatraz”. The Coast Guard and Marines arrived and the...

Milky Way: Where star formation ends

View of the Milky Way. Where does the zone of active star formation end in its star disk? © ESA/Gaia/DPAC, Stefan Payne-Wardenaar /CC-by-sa...

From the Holy Land to the Lower Rhine

Linn Castle owes its floor plan, which is still exceptional in the region, to the enthusiasm of a young crusader for Byzantine...

The man with 100 hands

In the 4th century B.C. A whole series of momentous changes took place in Rome in the 4th century BC. At the...

D-Day in Morocco

Foreign legionnaires from all countries, colonial troops from West Africa, German poison gas, international supporters and weapons, imperial cooperation: the Rif War...

How drought harms bumblebees

A field bumblebee (Bombus pascuorum) visiting flowers. © Hanno Korten/University of Würzburg The year 20222 was characterized by heat and drought in...

Photo worth seeing: What’s happening at CERN

What are they? the smallest particles? How do they relate to each other? It is located at the CERN research center in...

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