Q&A with Joe Anderson of Space Logistics LLC (members only)

Two astronauts floated outside the International Space Station early Friday for the first of four planned spacewalks to wrap up a complex multi-year job to replace 48 aging batteries in the lab’s solar power system with 24 more powerful lithium-ion units.

Watch a video replay of NASA’s Parker Solar Probe lifting off from Cape Canaveral Air Force Station’s Launch Complex 37 atop a United Launch Alliance Delta 4 Heavy on August 12, 2018.

India’s GSLV Mk.3 rocket took off Monday on its first full-scale orbital test flight, delivering the GSAT 19 communications satellite to an on-target orbit after successfully demonstrating new solid rocket boosters, a twin-engine core stage and an upgraded cryogenic upper stage engine.