CAPE CANAVERAL, Fla. (AP) — The Space Force has launched the military's mystery space plane again, this time with an extra load of science experiments.

The X-37B  rocketed into orbit Sunday morning from Cape Canaveral, Florida, a day late because of bad weather.

It's the sixth flight of an X-37B, which resembles a mini shuttle and operates remotely.

Officials aren't saying how long the spacecraft will remain in orbit.

The previous mission lasted a record two years.

The winged spacecraft resembles NASA's old shuttles, but is smaller at 29 feet long.

The one just launched features an extra compartment for experiments.

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