Spacecraft tracking hobbyists are now following the X-37B US military spaceplane, which was recently launched onto an undisclosed orbit:
- Air Force’s Mysterious X-37B Space Plane Spotted by Amateur Astronomers – Leonard David/Space.com
- X-37B spaceplane’s orbit discovered – Spaceflight Now
For more about seeing and tracking spacecraft of all sorts, see the HobbySpace Satellite Observing section.