While we were only previously given vague hints of what the plane was carrying, the Space Force is more forthright this time around. In its announcement, the military division has revealed that the X-37B’s sixth mission will deploy a small satellite called FalconSat-8 that was developed by the US Air Force Academy.

As Gizmodo notes, the military might be more willing to share information this time around, because the mission objectives aren’t as sensitive: FalconSat-8 is an educational platform that will come with five experimental payloads. The flight will also carry two NASA experiments to study the effects of radiation on seeds and materials used to grow food in space.

Randy Walden, the Director and Program Executive Officer for the Department of the Air Force Rapid Capabilities Office, called the sixth mission a “big step” for the X-37B program. It’s the first time the plane is using a service module to host experiments, and that will allow it to host more experimental payloads going forward.

The spacecraft completed “all mission objectives,” according to USAF Rapid Capabilities Office director Randy Walden. Just what those are isn’t clear, though. X-37B payloads are still classified, and officials have typically provided only vague hints of what was aboard. One was a thermal spreader that helped test “experimental electronics” and heat pipe cooling in long-term spaceflight, while another project may have tested a Hall-effect ion thruster. Walden did acknowledge that the space plane deployed “small satellites.”

This definitely isn’t the end for the X-37B when a sixth flight is due to take off from Cape Canaveral in 2020. It does, however, raise the bar for future trips. If the USAF is going to continue bragging about long durations in orbit, it will have to fly the space plane for substantially more than two years — that appears feasible, but it’s considerably more challenging than it was this time around.