HOUSTON (NASA PR) — The International Space Station has spent more than two decades in low-Earth orbit serving as Earth’s orbiting laboratory. Groundbreaking research aboard the station in its unique microgravity environment has led to benefits back on the ground and paved the way for future deep space missions.

HOUSTON (NASA PR) — While the International Space Station was traveling more than 260 miles over the South Pacific Ocean, a SpaceX Dragon cargo spacecraft autonomously docked to the space-facing side of the orbiting laboratory’s Harmony module at 3:41 a.m. EST, Wednesday, Dec. 22. NASA astronauts Raja Chari and Thomas Marshburn were monitoring docking operations for Dragon.

KENNEDY SPACE CENTER, Fla. (NASA PR) — A SpaceX Dragon resupply spacecraft carrying more than 6,500 pounds of science experiments, crew supplies, and other cargo is on its way to the International Space Station after launching at 5:07 a.m. EST Tuesday from NASA’s Kennedy Space Center in Florida.