A Russian supply ship carrying 2.9 tons of supplies and equipment has docked with the Russian segment of the International Space Station, according to Roskosmos space agency.
The unmanned Progress 55 spacecraft linked up with the station at 5:14 p.m., approximately six hours after launching into orbit atop a Soyuz rocket from the Baikonur Cosmodrome in the Central Asian nation of Kazakhstan.
"A flawless launch and ascent," said Rob Navias, monitoring the flight from mission control at the Johnson Space Center in Houston, according to NASA TV. "So far, so good, for the Progress 55 (mission)."
Russian space officials broke out in applause once the supply ship docked at the space station, calling Progress 55 a "great present for Cosmonautics Day.
Cosmonautics Day is held on April 12 in Russia, a holiday that celebrates the 1961 launch of Yuri Gagarin.
The ship brought 1,764 pounds of propellant, 926 pounds of water, 105 pounds of oxygen and 3,126 pounds of food, science experiments and other supplies for the station's six crew members.
The current ISS crew includes NASA's Rick Mastracchio and Steve Swanson; Russian cosmonauts Alexander Skvortsov, Mikhail Tyurin and Oleg Artemyev; and Japanese astronaut Koichi Wakata.
Next up for the space station is launch of a commercial SpaceX Dragon cargo ship on April 14, which will be loaded with 4,600 pounds of equipment and supplies.
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