A Proton rocket blasted off from the Baikonur Cosmodrome in Kazakhstan at 2040 GMT (4:40 p.m. EDT) Friday with Turkey’s Turksat 4B communications satellite.

A Chinese rocket measuring around 100 feet long that launched earlier this month will likely plunge back into Earth’s atmosphere some time Monday, becoming the most massive object in decades to fall out of orbit in an uncontrolled manner.

United Launch Alliance’s next launch attempt for its Delta 4-Heavy rocket from Cape Canaveral with a top secret U.S. government spy satellite will be delayed to no earlier than early Tuesday.