EDITOR’S NOTE: Updated July 22 with Pirs undocking delay.
A Proton rocket takes off from the Baikonur Cosmodrome on Wednesday with Russia’s Nauka science lab. Credit: RoscosmosThe International Space Station is set to receive its biggest expansion in more than a decade after the launch of a Russian research lab and a European robotic arm Wednesday from the Baikonur Cosmodrome in Kazakhstan.
Russia’s Nauka, or “science,” research module lifted on top of a Proton rocket Wednesday to kick off an eight-day pursuit of the space station, culminating in an automated docking with the orbiting outpost July 29.
Roscosmos, the Russian space agency, says the Nauka module has a mass of about 20.2 metric tons (44,500 pounds) and extends about 43 feet (13 meters) long. It’s the first large pressurized element to be permanently added to the space station since 2011, and will become one of the biggest modules at the complex.
The launch from Baikonur occurred at 10:58:25 a.m. EDT (1458:25 GMT; 7:58:25 p.m. local time), about a half-hour before sunset at the historic Russian-managed spaceport in Central Asia.