Snapshots from Atlas 5 launch

Four magnetic explosion probes in a towering stack atop an Atlas 5 rocket rode a fountain of flame off the launch pad and into Earth orbit Thursday night for a $1.1 billion NASA science investigation into a universal force of nature.

The enigmatic X-37B spaceplane, launched into low-Earth orbit on an experimental military mission in 2015, continues to circle the planet despite a flurry of landing rumors.

Nearly two days after launching from Cape Canaveral, SpaceX’s Dragon cargo craft arrived at the International Space Station on Saturday with more than 5,000 pounds of supplies, food, experiments and a new docking mechanism. Astronauts aboard the station captured Dragon using the Canadian-built robotic arm at 9:11 a.m. EDT (1311 GMT).