HL-20 Personnel Launch System: The Canceled NASA Space Plane Reborn as Dream Chaser

If you thought the era of re-useable space planes ended after Space Shuttle Atlantis touched down after STS-135, you've got another thing coming. Not only is the practice of designing spaceplanes alive and well, but an exciting second renaissance, a venerable post-Space Shuttle era of spaceplanes, is due to get underway any day now. When it does, Sierra Space's small but mighty Dream Chaser looks poised to get things started. B... (continue reading...)