DARPA Scraps 'Phantom Express' Space Plane Project After Boeing Withdraws - Reports

https://sputniknews.com/us/202001241078119039-darpa-scraps-phantom-express-space-plane-project-after-boeing-withdraws---reports/

https://www.geekwire.com/2020/farewell-phantom-express-darpa-says-boeing-pulling-space-plane-program/

more info about Phantom Express

https://www.darpa.mil/program/experimental-space-plane