I picked up the rock a few days before our #SoyuzMS09 launch from that very same launch pad. I brought it to space with me (and back) in honor of one of the greatest achievements of humankind #CosmonauticsDay https://twitter.com/astro_alex/status/1116736422914998279

On Thursday, Sergey, @AstroSerena and I will hitch a lift on this satellite, coming back home as a shooting star. I will miss this place! #Horizons #Exp57 #ISS #SoyuzMS09 https://t.co/91lsW5dJuC