Assured Space Access

Rocket-propelled arrows and early gunpowder weapons developed during the Song and Jin dynasties were used in battle in China, centuries before the technology spread to the Middle East and Europe and eventually enabled spaceflight.

The Scottish astronomer and mathematician's essay 'A Journey Through Space' set out rockets as a means of reaching space. It is the earliest known theoretical proposal of rocket-based spaceflight.

Tsiolkovsky's work derived the relation between delta-v, exhaust velocity and mass ratio. The equation remains a foundational engineering tool for designing launch vehicles and mission trajectories.

Goddard's application of the de Laval nozzle raised rocket efficiency enough that interplanetary travel became theoretically possible. The paper made spaceflight a practical engineering proposition rather than speculation.

After failing to secure an army contract during the First World War, Goddard proceeded with private funding and flew the world's first liquid-fuelled rocket on 16 March 1926 in Massachusetts. The flight lasted only a few seconds and reached a modest height, but liquid propulsion became the basis of every large launch vehicle that followed, from the V-2 to today's orbital rockets.

The V-2, the first guided ballistic missile, was developed as a weapon for use against London and Antwerp, but on a test flight in June 1944 one reached an altitude of 189 kilometres, above the Kármán line. By the minimum criterion of launching an object beyond the Kármán line, Germany thereby became the first spacefaring nation, and its lead engineers later shaped both the American and Soviet rocket programmes.

Most of the V-2 team, including Wernher von Braun, surrendered to the United States and was moved to work on American missiles at what became the Army Ballistic Missile Agency, yielding Juno I and Atlas. The Soviet Union captured V-2 production facilities and built replicas, seeding both superpowers' launch industries.

ICBMs were built to carry nuclear weapons as a counter to US bombers, with Sergey Korolev as chief designer. Derivatives of his R-7 Semyorka missile became the world's first orbital launch vehicles, tying space access to military missile programmes.

On 4 October 1957 an R-7 derivative placed Sputnik 1, the first artificial Earth satellite, in orbit, demonstrating that a rocket could deliver payloads to orbit around the Earth. This established orbital launch as a real national capability and triggered the space race with the United States, leading to the creation of NASA the following year.

Following Sputnik and two embarrassing Vanguard launch failures, the United States orbited Explorer 1 on 1 February 1958. It marked the emergence of a second nation with independent orbital launch capability.

Shepard's suborbital flight of 5 May 1961 was followed by Glenn's orbital launch on 20 February 1962. These flights gave the United States crewed launch capability and prompted Kennedy's Moon pledge and the Gemini and Apollo programmes.

On 12 April 1961 the Soviet Vostok 1 mission carried Yuri Gagarin through one orbit of the Earth, the first human spaceflight. Human-rated launch became a demonstrated capability and gave the Soviet Union a propaganda and prestige victory in the Cold War space race, spurring the United States to commit to landing astronauts on the Moon within the decade.

On 19 July 1963 the X-15 was air-launched above the space boundary. It was the first reusable vehicle to reach space, an early precedent for reusable access.

Italy's first satellites flew on NASA-provided vehicles from Wallops Flight Facility in 1964, then from a sea platform spaceport off Kenya between 1967 and 1988. It is an early example of a nation gaining access to space through borrowed launch vehicles and an equatorial launch site.

The treaty established that space is not subject to national appropriation and may not host weapons of mass destruction, becoming the foundational legal framework governing access to and use of space for every spacefaring nation since.

Uncrewed Saturn 1B and Saturn V flights led to the crewed Apollo 7, then Apollo 8, 9 and 10, culminating in the first crewed Moon landing. Six further missions followed, five of which landed, demonstrating heavy-lift launch and translunar access.

Britain ended national launcher development in 1972 and cooperated instead with the European Launcher Development Organisation on launch technologies until 1974. It is a rare case of a nation relinquishing sovereign launch capability.

Columbia flew STS-1 on 12 April 1981, the twentieth anniversary of Gagarin's flight, at a takeoff weight of 2,030 tonnes, making the Space Shuttle the first partially reusable orbital spacecraft. Partial reusability was intended to lower the cost of routine orbital access, and the fleet carried out 135 missions over three decades before retirement, though it never achieved the low launch costs originally promised.

Buran launched on 15 November 1988 and flew autonomously, but made only one flight. It demonstrated automated reusable orbital access before the programme lapsed.

The 17 January 1997 failure illustrated the ground hazard posed by launch vehicles carrying large propellant loads. Such events shaped range safety practice around spaceports.

Additional test flights from Texas continued a development campaign in which the booster had been recovered and reflown but the upper stage had not yet been reused, the remaining step toward a fully reusable launch system.

The German firm's Spectrum rocket lifted off from Andoya in Norway and failed shortly afterwards, but the flight was still notable as the first orbital launch attempt from continental Europe by a Western commercial rocket.

As of April 2025 three Super Heavy boosters had been recovered. The company has stated plans to use Starship for point-to-point and beyond-orbit transport, extending reusable heavy-lift access.

Sanctions and the loss of Western commercial customers since 2022, including cancelled satellite launch contracts, kept Russia's orbital launch cadence well below its pre-war level, even as Angara and Soyuz flights continued from Plesetsk and Vostochny.

Low-altitude hop and landing tests aimed at recoverable first stages followed the lead set by SpaceX, as Beijing pushed both state and commercial developers toward lower-cost, reflyable launch vehicles alongside the established Long March family.

Mitsubishi Heavy Industries and JAXA carried out further successful H3 launches, building a track record after the vehicle's 2023 debut failure, while continuing work on the solid-fuelled Epsilon S booster intended to complement it.

The mission, delayed for years by payload integration issues, flew on an Indian GSLV rocket carrying a synthetic aperture radar satellite built jointly by NASA and the Indian Space Research Organisation, underscoring India's role as a launch provider for international partners.

Responsibility for building and flying the KSLV-II Nuri rocket continued shifting from the state space agency to a private contractor, part of a plan to hand South Korea's launch capability to industry after a run of state-led test flights.

The Hainan International Commercial Aerospace Launch Site hosted its first Long March 12 flight, giving Chinese commercial operators a dedicated coastal site separate from the country's older inland, military-linked launch centres.

During a Starship test flight the first-stage booster returned to the launch site and was caught in mid-air by mechanical arms on the tower, a step toward rapid reuse without the weight and complexity of landing legs.

Ariane 6 made its maiden flight from French Guiana, restoring a European heavy-lift launch capability after the retirement of Ariane 5 and a delayed debut had left the continent reliant on SpaceX and other providers for a year.

The 2022 selection was the first to include minorities such as people with disability, following long-standing demands for social inclusion in human spaceflight. It broadened who could physically access space.

The Crew Dragon Demo-2 mission carried two NASA astronauts to the International Space Station, ending nearly a decade in which the United States had relied on Russian Soyuz rockets to reach orbit after the Space Shuttle's retirement.

A previously flown first stage was launched again on 30 March 2017. Demonstrated reflight turned recovery into genuine reusability and reduced the cost of access to orbit.

On 21 December 2015 a Falcon 9 first stage returned to a landing pad at Cape Canaveral after delivering 11 Orbcomm OG-2 satellites to low Earth orbit, the first vertical soft landing of an orbital rocket stage. It demonstrated that the most expensive part of a rocket could be recovered and reused rather than discarded, shifting the economics of launch toward reuse.

The fleet flew from April 1981 until July 2011 and was retired mainly on grounds of age, following the loss of Challenger in January 1986 and Columbia in February 2003. Its crew transport role passed to the SpaceX Dragon 2 and CST-100 in the 2020s.

SpaceShipOne, financed by Microsoft co-founder Paul Allen and designed by Burt Rutan, first reached space on 21 June 2004 in the first privately funded human spaceflight, then flew above the edge of space twice within a fortnight with pilots Mike Melvill and Brian Binnie to win the Ansari X Prize. It opened the way for a commercial suborbital tourism and research industry.

The suborbital flight of 17 May 2004 was the first spaceflight achieved by amateurs. It showed the space boundary could be reached outside state and large-industry programmes.

Founded in April 2004, the body promotes international cooperation and scientific advancement in the safety of space systems. Its creation reflected the institutionalisation of launch and flight safety practice.

From 1998 Italy led Vega development within ESA. It gave Europe a dedicated small-payload launcher alongside the larger Ariane family.