University of Heidelberg

According to foreign media, it is a school in Hamburg.

Aktuell kommt es an der Otto-Hahn-Schule in #Jenfeld zu einem greren Polizeieinsatz. Der Bereich um die Schule ist gesperrt.
Es soll ein mit einer Schusswaffe bewaffneter Jugendlicher das Schulgebude betreten haben.
Wir informieren hier laufend weiter. pic.twitter.com/SxMu4LfSoF

Athens has cancelled the license it granted to the Meteor ship to conduct research on behalf of the University of Heidelberg in the Aegean Sea after Turkey on Wednesday disputed Greece's sovereign rights by granting its own permits to the German vessel. 

World Cancer Day is celebrated on February 4 to raise awareness of cancer and encoruage its prevention, detection and treatment. The race is on to find cutting edge research to battle the disease. Deutsche Welle showcased where the attention of cancer treatments is focused: