U četvrtak (20. septembar) je u Bugarskoj otpočela godišnja Sedmica nauke, pod motom "Spoznajte ljepotu nauke; saznajte o divotama nauke; proživite noć naučnika".
The annual Science Week began in Bulgaria on Thursday (September 20th) under the motto "See the beauty of science; learn about the wonders of science; live out the night of scientists".