NASA astronaut Tracy Dyson, Roscosmos cosmonaut Oleg Novitskiy, and Belarus spaceflight participant Marina Vasileyskaya opened up the hatches between the Soyuz MS-25 and International Space Station following their docking to the Prichal module of the space station on March 25, beginning their missions. The trio launch on the Soyuz MS-25 spacecraft atop a Soyuz 2.1a rocket from the Baikonur Cosmodrome in Kazakhstan on March 23. Join NASA as we go forward to the Moon and on to Mars -- discover the latest on Earth, the Solar System and beyond with a weekly update in your inbox. Subscribe at: https://www.nasa.gov/subscribe