SSC Demo-1

SSC Demo-1
Dream Chaser Tenacity and its Shooting Star cargo module undergoing testing
NamesDream Chaser Demo-1
Mission typeFlight test, ISS resupply
OperatorSierra Nevada Corporation
Websitesierraspace.com/dream-chaser-spaceplane
Mission duration45 days (planned)
Spacecraft properties
SpacecraftDream Chaser Tenacity
Spacecraft typeDream Chaser
Manufacturer
Start of mission
Launch dateNET Q3 2025
RocketVulcan Centaur VC4L
Launch siteCape Canaveral, SLC41
ContractorUnited Launch Alliance
End of mission
Landing siteKennedy, SLF Runway 15/33
Orbital parameters
Reference systemGeocentric orbit
RegimeLow Earth orbit
Inclination51.6°
Berthing at ISS
Berthing portHarmony nadir or Unity nadir

SSC Demo-1, also known as Dream Chaser Demo-1, is the planned first flight of the Sierra Space robotic resupply spacecraft Dream Chaser to the International Space Station (ISS) under the CRS-2 contract with NASA. The demonstration mission is planned for launch no earlier than the third quarter of 2025.

In April 2021 the Dream Chaser division of the Sierra Nevada Corporation (SNC) was spun-off, creating the fully independent Sierra Space Corporation (SSC), which assumed full oversight over the Dream Chaser program. The company developed a new reusable spacecraft to provide commercial cargo resupply services to the International Space Station (ISS), based on decades of lifting body programs. Under the Commercial Orbital Transportation System (COTS) program, the company designed Dream Chaser with industrial partner Lockheed Martin.

The company also designed the accompanying Shooting Star cargo module with subcontractor Applied Composites. At the end of mission, the Shooting Star will destructively reenter the atmosphere and the Dream Chaser will land at the Kennedy Space Center's Shuttle Landing Facility.