Sierra Space: Dream Chaser, Orbital Reef, and a Lifting-Body Comeback

Dream Chaser is a winged spacecraft about a quarter the size of the Space Shuttle. It launches inside a fairing, glides back to a runway landing, and can be reused dozens of times. After years of delays, it is now flight-hardware-ready — preparing to return ISS cargo missions to runway landings for the first time since the Shuttle.

Why a lifting body?

• Runway landings let payloads return at low g-loads (about 1.5g vs ~5g for capsules).
• Cargo can be unloaded immediately at the runway rather than after recovery at sea.
• The reusable design supports many flights with limited refurbishment.
• Lifting bodies provide cross-range maneuverability for landing site flexibility.

Tenacity and Reverence

Sierra Space named its first two Dream Chaser vehicles Tenacity and Reverence. Tenacity completed environmental testing at NASA's Neil Armstrong Test Facility and is awaiting first flight. Reverence is in production. Each spacecraft is designed for at least 15 missions.

Spinoff

2021 from Sierra Nevada Corporation

HQ

Louisville, Colorado

Dream Chaser length

9 m (about 30 ft)

Cargo capacity

Up to 5,500 kg pressurized + 460 kg unpressurized

Launch vehicle

ULA Vulcan Centaur

Landing

Runway, including Kennedy Space Center Shuttle Landing Facility

Orbital Reef and LIFE

Sierra Space's LIFE habitat is an inflatable structure roughly the volume of a three-bedroom house, fitting compressed inside a standard rocket fairing. It is the proposed primary module for Orbital Reef, the commercial space station Sierra Space is co-developing with Blue Origin under NASA's Commercial LEO Destinations program.

Inflatable habitats are not new

TransHab in the 1990s pioneered the technology. Bigelow Aerospace launched two demos in the 2000s and the BEAM module on the ISS. Sierra Space's LIFE is the next-generation iteration — designed for full crew habitation rather than experimental demos.