description Northrop Grumman Cygnus Overview
Cygnus is an uncrewed cargo spacecraft developed for NASA's Commercial Resupply Services program and operated by Northrop Grumman following corporate acquisitions. It carries food, scientific equipment, spare parts, and other supplies to the International Space Station, where astronauts capture it with the station's robotic arm for berthing. After departure, it normally burns up during atmospheric reentry while disposing of station waste.
help Northrop Grumman Cygnus FAQ
How does Cygnus deliver cargo to the International Space Station?
Cygnus approaches the ISS autonomously but does not dock directly under its own power. Astronauts capture it with the station's Canadarm2 robotic arm and berth it to a Common Berthing Mechanism port.
Does the Cygnus spacecraft return cargo safely to Earth?
No. After leaving the ISS, Cygnus is intentionally destroyed during atmospheric reentry, allowing it to dispose of station waste. This differs from SpaceX's Dragon capsule, which can return experiments and other cargo to Earth.
When did Cygnus first reach the ISS?
The first Cygnus demonstration spacecraft reached and was berthed to the ISS in September 2013. The first operational Commercial Resupply Services mission launched in January 2014.
Which rockets have launched Northrop Grumman Cygnus missions?
Most Cygnus missions historically launched on versions of Northrop Grumman's Antares rocket from Wallops Island, Virginia. United Launch Alliance's Atlas V and SpaceX's Falcon 9 have also carried Cygnus spacecraft.
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