

Sierra Space’s Dream Chaser spaceplane, Tenacity, is currently undergoing environmental testing at NASA’s Neil Armstrong Test Facility after being delivered just a few days ago and is set to make its maiden flight to the International Space Station (ISS) in April 2024.
The testing involves rigorous analysis of the spacecraft’s ability to withstand launch and re-entry vibrations, extreme temperature changes, and vacuum conditions in outer space. This comes after Tenacity’s completion and delivery of Sierra Space’s cargo module, Shooting Star, for testing at the Neil Armstrong Facility last month.
Tom Vice, Sierra Space CEO, shared: “At Sierra Space, we are ushering in the next industrial revolution with a business and technology platform that provides our customers with a complete turn-key solution offering space as a service. Our platform includes Dream Chaser, a revolutionary, highly reusable commercial spaceplane with global runway access, and the first business-ready commercial space station, leveraging the most advanced expandable structural architecture that will exponentially decrease the cost of product development and manufacturing in space.”
This milestone is a testament to the resilience and perseverance of the Dream Chaser, which has overcome numerous obstacles, including rejections, legal proceedings, engineering designs, and successful flight tests.
The aim of Dream Chaser is to provide a cost-effective method for delivering cargo and supplies to the ISS, offering reusability capabilities as seen in NASA’s contracted cargo resupply missions. It’s an exciting time as Tenacity gets ready for its upcoming maiden flight and in-flight tests prior to docking with the ISS.

