In Moscow, the capital of Russia, dozens of Santas descended from the roofs of Morozovskaya Children's Hospital with ropes to cheer the children who are being treated at the hospital.

Microplastics found in the human brain! How do they reach the brain? Microplastics found in the human brain! How do they reach the brain?

The traditional social event organized by the Moscow fire brigade search and rescue teams created colorful images.

Editor: David Goodman