Pentagon Mysterious

"A Pentagon spaceplane called X-37B zoomed into orbit this week for its eighth mission. When it will come back is a secret."https://www.wsj.com/science/space-astronomy/the-pentagons-mysterious-x-37b-space-plane-embarks-on-new-mission-bfa44914?st=XK5bpV&mod=1440&user_id=66c4c92f5d78644b3ac5d5b4