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.
Secondary payload, also known as rideshare payload, is a smaller-sized payload transported to orbit on a launch vehicle that is mostly paid for—and with the date and time of launch and the orbital trajectory determined—by the entity that contracts and pays for the primary launch. As a result, the secondary payload typically obtains a substantially reduced price for transportation services to orbit, by accepting a trade off of the loss of control once the contract is signed and the payload is delivered to the launch vehicle supplier for integration to the launch vehicle. These tradeoffs typically include having little or no control over the launch date/time, the final orbital parameters, or the ability to halt the launch and remove the payload should a payload failure occur during ground processing prior to launch, as the primary payload typically purchases all of these launch property rights via contract with the launch services provider.
Astra is an American launch vehicle company based in Alameda, California. Astra was incorporated in October 2016 by Chris Kemp and Adam London. Formerly known in media as "Stealth Space Company", the company formally came out as Astra Space, Inc. in a Bloomberg L.P. article by Ashlee Vance. Investors include BlackRock, Advance, ACME, Airbus Ventures, Innovation Endeavors, Salesforce co-founder Marc Benioff, former Disney CEO Michael Eisner, and more.
Firefly Aerospace is an American private aerospace firm based in Cedar Park, Texas, that develops launch vehicles for commercial launches to orbit. The company completed its $75 million Series A investment round in May 2021, which was led by DADA Holdings. The current company was formed when the assets of the former company Firefly Space Systems were acquired by EOS Launcher in March 2017, which was then renamed Firefly Aerospace. Firefly's purported purpose is to increase access to space, similar to other private spaceflight companies. Firefly Space shares its name with an American space-western drama TV series, Firefly.
Electron is a two-stage, partially recoverable orbital launch vehicle developed by Rocket Lab, an American aerospace company with a wholly owned New Zealand subsidiary. Electron was developed to service the commercial small satellite launch market. Its Rutherford engines are the first electric-pump-fed engine to power an orbital-class rocket. Electron is often flown with a kickstage or Rocket Lab's Photon spacecraft. Although the rocket was designed to be expendable, Rocket Lab has recovered the first stage twice and is working towards the capability of reusing the booster. The Flight 26 (F26) booster has featured the first helicopter catch recovery attempt.
Space launch market competition is the manifestation of market forces in the launch service provider business. In particular it is the trend of competitive dynamics among payload transport capabilities at diverse prices having a greater influence on launch purchasing than the traditional political considerations of country of manufacture or the national entity using, regulating or licensing the launch service.
New Glenn is a heavy-lift orbital launch vehicle in development by Blue Origin, named after NASA astronaut John Glenn, the first American astronaut to orbit Earth. Design work on the vehicle began in 2012; illustrations of the vehicle, and the high-level specifications, were initially publicly unveiled in September 2016. New Glenn is a two-stage rocket with a diameter of 7 m (23 ft). Its first stage will be powered by seven BE-4 engines that are also being designed and manufactured by Blue Origin.
Firefly Alpha is a two-stage orbital expendable launch vehicle developed by the American company Firefly Aerospace to compete in the commercial small satellite launch market. Alpha is intended to provide launch options for both full vehicle and rideshare customers.
Relativity Space is an American aerospace manufacturing company headquartered in Long Beach, California. Relativity Space is developing manufacturing technologies, launch vehicles, and rocket engines for commercial orbital launch services. The company is notable for manufacturing most of their Terran 1 and Terran R rocket parts using 3D printing.
Orbital Express Launch Ltd., or Orbex, is a United Kingdom-based aerospace company that is developing a small commercial orbital rocket called Prime. Orbex is headquartered in Forres, Moray, in Scotland and has subsidiaries in Denmark and Germany. Its future launch complex, Sutherland spaceport, is being built on the A' Mhòine peninsula in the county of Sutherland, northern Scotland.
Starship is an American two-stage super heavy lift launch vehicle under development by the aerospace company SpaceX. It is currently the largest and most powerful rocket ever flown. Starship is intended to be fully reusable, which means both stages will be recovered after a mission and reused.
This article documents expected notable spaceflight events during the year 2026.
ABL Space Systems is an American aerospace and launch service provider, based in El Segundo, California, that manufactures deployable launch vehicles and infrastructure for sending commercial small satellites into orbit. The company manufactures its components in the United States.
Terran R is a heavy-lift two-stage, partially reusable launch vehicle under development by Relativity Space. The vehicle is partially constructed with 3D printing technologies, much like its predecessor, the small-lift Terran 1. The first flight is expected to be in 2026.
Photon is a satellite bus based on Rocket Lab's kick stage.
Terran 1 was an expendable two-stage small-lift launch vehicle developed by Relativity Space. Development began in 2017 and the rocket was retired in 2023. Most structures and components of the vehicle are manufactured with 3D printing processes.
Vast is a privately held American aerospace company headquartered in Long Beach, California. It was founded in 2021 by entrepreneur Jed McCaleb with the goal of developing artificial gravity space stations to "expand humanity beyond the solar system".
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