SpaceX will attempt to launch Zuma payload on Jan. 5

SpaceX will be making an bid to send the top-secret Zuma payload into low Earth orbit on Jan. 5. The previous attempt to do that last November was canceled by the space launch company.

By SpaceX [CC0 or CC0], via Wikimedia Commons

The exact launch window is Jan. 6 0100 to 0300 GMT.