SpaceX-13 was a cargo resupply mission contracted by NASA to deliver science research as well as crew supplies, tools, and vehicle hardware to the International Space Station (ISS). The Falcon 9 rocket carrying the Dragon capsule was launched December 15, 2017 and arrived at the ISS on December 17. It is notable that the Falcon used the first stage booster previously flown on SpaceX-11 and the Dragon capsule previously flown on SpaceX-6.
The Dragon delivered 3439 pounds of pressurized cargo including science investigations, vehicle hardware, computer equipment, spacewalk equipment, and crew supplies. An additional 1422 pounds of unpressurized cargo comprised of two science investigations destined for installation outside the ISS were also delivered.
After nearly a month on orbit, Dragon returned to Earth on January 13, 2017, carrying over 4000 pounds of science research and hardware.