Snapshots from Atlas 5 launch

Hobbyists who keep track of the skies with remarkable precision have found the U.S. Air Force’s mini space shuttle in its no-longer-secret orbit around the Earth.

China’s Tianwen 1 spacecraft — in orbit around Mars since February — is scheduled to deploy a descent module to attempt the country’s first landing on the Red Planet in mid-May. Officials plan to share the Mars rover’s scientific data with researchers around the world, a senior Chinese scientist said last week.

On track for launch from Cape Canaveral in July, NASA’s Perseverance rover has been secured to its rocket-powered descent stage and back shell, part of the protective shield that will safeguard the robot when it arrives at Mars next year.