Q&A with Heino Falcke, principal investigator of the Netherlands-China Low-Frequency Explorer (members only)

Emiliano Kargieman leads Satellogic, an Argentinian company founded in 2010 to develop a fleet of small satellites designed to cover the globe with high-resolution mapping images at least once every week, supplying data to customers in the oil and gas, agricultural and forestry, and government sectors.

A Chinese Long March 3B launcher carried a Beidou satellite into orbit Monday, adding the penultimate satellite to China’s independent navigation fleet before another mission in May completes the constellation to give it a global reach.

China’s heaviest rocket has rolled to its launch pad for liftoff Thursday with the country’s first Mars landing mission, an ambitious attempt to place an orbiter around the Red Planet and a robotic rover on the Martian surface in early 2021.