Please consider donating by giving either a one-time contribution or a regular subscription, as outlined in the tip jar below.
Regular readers can support Behind The Black with a contribution via paypal:
If Paypal doesn't work for you, you can support Behind The Black directly by sending your donation by check, payable to Robert Zimmerman, to
Behind The Black
c/o Robert Zimmerman
Cortaro, AZ 85652
You can also support me by buying one of my books, as noted in the boxes interspersed throughout the webpage. And if you buy the books through the ebookit links, I get a larger cut and I get it sooner.
Tianzhou-1, China’s first unmanned freighter, has successfully completed its second refueling test while docked with that country’s Tiangong-2 space module.
The test was successfully completed at 18:28 Beijing time on June 15th (10:28 UTC), according to an announcement (Chinese) from the China Manned Space Agency (CMSA).
Tianzhou-1 and the Tiangong-2 space station test bed module have been coupled for 54 days in orbit at around 390 kilometres above the Earth since April 22, following launch of Tianzhou-1 on April 20.
A first 29-step, five-day refuelling process was successfully concluded on April 27, marking a major step in China’s space station plans. The second test is understood to have taken two days.
The freighter will next undock, fly free for several months, and then attempt a third docking, this time doing so in only six hours versus the two day maneuvers it has so far completed.