Astronaut Scott Kelly, re-adapting to gravity, people and wide open spaces after a record 340 days cooped up aboard the International Space Station, said Friday his muscles and joints are a bit sore — “just about all of ’em” — his skin is surprisingly sensitive and “I never felt completely normal up there.”

The first in a new constellation of Russian Arctic weather satellites is poised for launch on top of a Soyuz rocket Sunday from the Baikonur Cosmodrome in Kazakhstan.

A Soyuz rocket is scheduled for liftoff Friday from the Vostochny Cosmodrome, Russia’s newest launch site, with 33 satellites from 12 countries on-board to collect weather data and test new space technology.