Live coverage: Space station crew concludes 186 days in orbit

Europe’s LISA Pathfinder mission crafted to demonstrate the ability to detect gravitational waves — theorized ubiquitous cosmic signals that have so far eluded discovery — has arrived at its operating post around the L1 Lagrange point nearly a million miles from Earth.

Russia launched a fresh satellite for the Glonass network Wednesday aboard a Soyuz rocket, replenishing a fleet of positioning and timing stations used around the world for navigation services.

Two days after launching from the steppe of Kazakhstan, a Russian Progress resupply and refueling freighter docked with the International Space Station Sunday.