An important fact of astronomy and space science is for me that you do not have any borders. If you watch the night sky, you will not see any borders. If you watch earth from the ISS, you do rarely detect borders. Borders can simplify thinking, but it also limit it.
This start of the satellite Sentinel-2B showed me again, that if all countries working together they can reach so much. They can implement systems to monitor the earth - and no only the own areas - to learn more how mankind changes the world; to learn, how mankind can safe the world.
All the participants from all over the world celebrating this event together, in a time, when more and more countries focusing again on its own. This keep me hoping, this will change again and we and our children will work for a better world. We will "think global and act local". I am realy happy to be parts of this great community.