Classified indeed. Pretty much all we know about Zuma is its vague destination — low-Earth orbit. It's unknown what the satellite will do, or even which government agency is charged with operating it.

If we hear anything else about Zuma's status, we'll let you know.

Zuma is widely regarded as a national-security mission. Before Sunday, SpaceX had launched just two national-security payloads — the NROL-76 satellite for the National Reconnaissance Office in May 2017 and the Air Force's robotic X-37B space plane this past September.