International Cosmic Day 2020

The 9th International Cosmic Day will take place on 4 November 2020.
The International Cosmic Day (ICD) focuses on the cosmic rays that surround us all the time, but are always unnoticed. So let's explore them for one day and discover what secrets they bring with.
During this day, students, teachers and scientists get together to talk and learn about Cosmic Rays. Questions that can be discussed are:

What are cosmic particles?
Where do they come from?
How can they be measured and what can we learn from them?