Q&A with Guglielmo Aglietti, RemoveDebris principal investigator (members only)

These photos show the launch of a SpaceX Falcon 9 rocket Nov. 21 from Vandenberg Air Force Base in California with the U.S.-European Sentinel-6 Michael Freilich oceanography satellite.

A commercial Dragon spacecraft glacially approached the International Space Station on Wednesday, allowing a robotic arm controlled by Japanese astronaut Norishige Kanai to reach out and grapple the supply ship as it soared 250 miles over Africa, completing SpaceX’s 14th mission to the research complex, and the second by the same capsule.

An Indian rocket lifted off with two British-built Earth-imaging satellites at 1638 GMT (12:38 p.m. EDT) Sunday — one developed with the financial backing of the UK government to demonstrate radar reconnaissance technology, and another destined for use by a commercial imaging company in Asia.