Science News of the Week 23/01/2020

Discover the scientific news of the week.<br /> <br /><br /> <br />In this week&#39;s news:<br /> <br />Thomas Pesquet will return to the international space station in 2021<br /> <br />It will be the second long-term flight of the French astronaut.<br /> <br />His first space trip took place from November 2016 to June 2017.<br /> <br /><br /> <br />Find the rest of the news in our video.