A space station is a spacecraft which remains in orbit and hosts humans for extended periods of time. It therefore is an artificial satellite featuring habitation facilities. The purpose of maintaining a space station varies depending on the program. Most often space stations have been research stations, but they have also served military or commercial uses, such as hosting space tourists.
Cygnus is an expendable American automated cargo spacecraft designed for International Space Station (ISS) resupply missions. It was initially developed by Orbital Sciences Corporation with financial support from NASA under the Commercial Orbital Transportation Services (COTS) program. To create Cygnus, Orbital paired a pressurized cargo module, largely based on the Multi-Purpose Logistics Module, built by Thales Alenia Space and previously used by the Space Shuttle for ISS resupply, with a service module based on Orbital's GEOStar, a satellite bus. After a successful demonstration flight in 2013, Orbital was chosen to receive a Commercial Resupply Services (CRS) contract. A larger Enhanced Cygnus was introduced in 2015. Orbital Sciences merged into Orbital ATK in 2015; Northrop Grumman purchased Orbital ATK in 2018 and has continued to operate Cygnus missions. A further enlarged Mission B Cygnus is expected to be introduced in 2025.
The US Orbital Segment (USOS) is the name given to the components of the International Space Station (ISS) constructed and operated by the United States National Aeronautics and Space Administration (NASA), European Space Agency (ESA), Canadian Space Agency (CSA) and Japan Aerospace Exploration Agency (JAXA). The segment consists of eleven pressurized components and various external elements, almost all of which were delivered by the Space Shuttle.
A space tug is a type of spacecraft used to transfer spaceborne cargo from one orbit to another orbit with different energy characteristics. The term can include expendable upper stages or spacecraft that are not necessarily a part of their launch vehicle. However, it can also refer to a spacecraft that transports payload already in space to another location in outer space, such as in the Space Transportation System concept. An example would be moving a spacecraft from a low Earth orbit (LEO) to a higher-energy orbit like a geostationary transfer orbit, a lunar transfer, or an escape trajectory.
Nanoracks LLC is an American private in-space services company which builds space hardware and in-space repurposing tools. The company also facilitates experiments and launches of CubeSats to Low Earth Orbit.
OA-9E was the tenth flight of the Cygnus, an uncrewed resupply spacecraft. The flight was launched by Orbital ATK (OA), which was purchased by Northrop Grumman during the mission. It was the ninth flight under the Commercial Resupply Services (CRS) contract with NASA and conducted under an extension, leading to the "E" in the mission name. The mission launched on 21 May 2018 at 08:44:06 UTC.
DreamUp PBC is a Public-benefit corporation that offers space-based educational activities. DreamUp is a spin-off and sister company of Nanoracks LLC, a private spaceflight company. Nanoracks gives DreamUp access to research opportunities on the U.S. National Lab on board the International Space Station.
The Lunar Gateway, or simply Gateway, is a space station which is planned to be assembled in orbit around the Moon. The Gateway is intended to serve as a communication hub, science laboratory, and habitation module for astronauts as part of the Artemis program. It is a multinational collaborative project: participants include NASA, the European Space Agency (ESA), the Japan Aerospace Exploration Agency (JAXA), the Canadian Space Agency (CSA), and the Mohammed Bin Rashid Space Centre (MBRSC). The Gateway is planned to be the first space station beyond low Earth orbit.
Axiom Space, Inc., also known as Axiom Space, is an American privately funded space infrastructure developer headquartered in Houston, Texas.
NG-14, previously known as OA-14, was the fifteenth flight of the Northrop Grumman robotic resupply spacecraft Cygnus and its fourteenth flight to the International Space Station under the Commercial Resupply Services (CRS-1) contract with NASA. The mission was launched on 3 October 2020, at 01:16:14 UTC.
Cygnus NG-15, previously known as OA-15, was the fifteenth launch of the Northrop Grumman robotic resupply spacecraft Cygnus and its fourteenth flight to the International Space Station (ISS) under the Commercial Resupply Services (CRS) contract with NASA. The mission launched on 20 February 2021 at 17:36:50 UTC. This is the fourth launch of Cygnus under the CRS-2 contract.
Axiom Station is a planned modular space station designed by Houston, Texas-based Axiom Space for commercial space activities. Axiom Space gained initial NASA approval for the venture in January 2020. Axiom Space was later awarded the contract by NASA on February 28, 2020. Axiom Station is one of multiple Commercial LEO Destinations (CLD) projects supported by NASA to build a successor to the International Space Station (ISS) before its decommissioning in 2030.
NG-17, previously known as OA-17, was the seventeenth flight of the Northrop Grumman robotic resupply spacecraft Cygnus and its sixteenth flight to the International Space Station (ISS) under the Commercial Resupply Services (CRS) contract with NASA. The mission launched on 19 February 2022 at 17:40:03 UTC. It was the sixth launch of Cygnus under the CRS-2 contract.
NG-18 was the eighteenth flight of the Northrop Grumman robotic resupply spacecraft Cygnus and its seventeenth flight to the International Space Station (ISS) under the Commercial Resupply Services (CRS-2) contract with NASA. The mission successfully launched on 7 November 2022 at 10:32:42 UTC. This was the seventh launch of Cygnus under the CRS-2 contract.
NG-19 was the nineteenth flight of the Northrop Grumman robotic resupply spacecraft Cygnus and its eighteenth flight to the International Space Station (ISS) under the Commercial Resupply Services (CRS-2) contract with NASA. The mission launched on 2 August 2023 at 00:31:14 UTC. This was the eighth launch of Cygnus under the CRS-2 contract.
Orbital Reef is an under development low Earth orbit (LEO) space station being designed by Blue Origin and Sierra Nevada Corporation's Sierra Space for commercial space activities and space tourism uses. Blue Origin has referred to it as a "mixed-use business park". The companies released preliminary concepts for the station on 25 October 2021. The station is being designed to support 10 persons in 830 m3 of volume. As of March 2022, the station was projected to be operational by 2027.
Starlab is a LEO commercial space station currently under development by Starlab Space, a joint venture between the U.S. company Voyager Space and European company Airbus. If development continues beyond the initially-funded phase in 2021–24, then Starlab would be launched before the decommissioning of the ISS, no earlier than 2028. The development program has received partial funding from both NASA and the ESA.
The Commercial LEO Destinations program is a public/private partnership program of the NASA, to help facilitate the building of private commercial space stations (CSSs) in low Earth orbit.
