Tianzhou-4 freighter undocks from Tiangong-3, while Tianzhou-5 prepares for launch

Chinese engineers have undocked the Tianzhou-4 unmanned freighter from their Tiangong-3 space station, even as other engineers complete the stacking of Tianzhou-5 on its rocket and move it to its launch site.

Tianzhou-4 remains in orbit. At some point it will be de-orbited to burn up over the ocean, but China’s state-run press has not said when. In the past engineers have kept these cargo freighters in orbit after undocking for long periods in order to test their capabilities.

Though the launch date for Tianzhou-5 on its Long March 7 rocket was also not revealed by today’s press report, earlier reports suggest the launch is targeting November 12th.