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

Northrop Grumman’s Cygnus supply ship set for liftoff Saturday will deliver to the International Space Station the final hardware for a series of ambitious spacewalks later this month to install a new coolant system on the Alpha Magnetic Spectrometer, a $2 billion particle physics experiment seeking the cosmic signatures of dark matter and antimatter.

In a head-spinning tweet, President Trump blasted NASA on Friday for its plan to return to the moon, a plan set in motion during a 2017 White House ceremony he presided over, and forcefully endorsed in March on the president’s behalf by Vice President Mike Pence, chairman of the revitalized National Space Council.

SpaceX’s Falcon 9 rocket is set for liftoff from Cape Canaveral on Wednesday, heading east over the Atlantic Ocean to deliver NASA’s Transiting Exoplanet Survey Satellite into orbit approximately 49 minutes after launch.