In a statement to TechCrunch, SpaceX President and COO Gwynne Shotwell said, "For clarity: after review of all data to date, Falcon 9 did everything correctly on Sunday night. If we or others find otherwise based on further review, we will report it immediately. Information published that is contrary to this statement is categorically false." She also said that because of the misson's classified nature, the company couldn't comment further.

So what did happen to Zuma is still a big question mark and we may never get the full story. Some accounts have said that Zuma deorbited and burned up as it fell through the atmosphere. But it's possible the satellite is still up there and unresponsive. One proposed theory is that Zuma didn't properly detach from the Falcon 9's second stage and because the piece attaching it to the rocket -- the payload adapter -- was made by Northrop Grumman rather than SpaceX, that could mean the rocket did in fact perform as expected and a faulty adapter was to blame. However, no government agency has stepped up to claim the satellite and Northrop Grumman has naturally remained tight-lipped about the whole mission.

If SpaceX really was at fault, it probably wouldn't jump right into another major launch. But Falcon Heavy is still on schedule for a static fire later this week, just ahead of its upcoming and highly anticipated launch. "Since the data reviewed so far indicates that no design, operational or other changes are needed, we do not anticipate any impact on the upcoming launch schedule," said Shotwell.