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Private spaceflight

Private spaceflight is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Private spaceflight rather than just read about it. In short: Private spaceflight is any spaceflight development that is not conducted by a government agency, such as NASA or ESA. During the early decades of the Space Age, the government space agencies of the Soviet Union and United States pioneered space technology in collaboration with affiliated design bureaus in the USSR and private companies in the US.

Private spaceflight — main illustration
Private spaceflight — illustration

Key takeaways

  • Private spaceflight belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Private spaceflight to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Private spaceflight from memory before moving on to harder problems.

Reference excerpt

Private spaceflight is any spaceflight development that is not conducted by a government agency, such as NASA or ESA. During the early decades of the Space Age, the government space agencies of the Soviet Union and United States pioneered space technology in collaboration with affiliated design bureaus in the USSR and private companies in the US. They entirely funded both the development of new spaceflight technologies and the operational costs of spaceflight. Following a similar model of space technology development, the European Space Agency was formed in 1975. Arianespace, born out of ESA's independent spaceflight efforts, became the world's first commercial launch service provider in the early 1980s. Subsequently, large defense contractors began to develop and operate space launch systems, which were derived from government rockets. In the United States, the FAA has created a new certification called Commercial Astronaut, a new occupation. In the 2000s, entrepreneurs began designing—and by the 2010s, deploying—space systems competitive to the governmental systems of the early decades of the space age. These new offerings have brought about significant market competition in space launch services after 2010 that had not been present previously, principally through the reduction of the cost of space launch and the availability of more space launch capacity. Private spaceflight accomplishments to date include flying suborbital spaceplanes (SpaceShipOne and SpaceShipTwo), launching orbital rockets, flying two orbital expandable test modules (Genesis I and II). On the opposite, launching astronauts to the International Space Station and certain satellite launches are performed on behalf of and financed by government agencies. Planned private spaceflights beyond Earth orbit include personal spaceflights around the Moon. Two private orbital habitat prototypes are already in Earth orbit, with larger versions to follow. Planned private spaceflights beyond Earth orbit include solar sailing prototypes (LightSail-3).

History of commercial space transportation

During the principal period of spaceflight in the mid-twentieth century, only countries developed and flew spacecraft above the Kármán line, the nominal boundary of space. Both the U.S. civilian space program and Soviet space program were operated using mainly military pilots as astronauts. During this period, no commercial space launches were available to private operators, and no private organization was able to offer space launches. Eventually, private organizations were able to both offer and purchase space launches, thus beginning the period of private spaceflight. The first phase of private space operation was the launch of the first commercial communications satellites. The U.S. Communications Satellite Act of 1962 allowed commercial consortia owning and operating their own satellites, although these were still deployed on state-owned launch vehicles. In 1980, the European Space Agency created Arianespace, a company to be operated commercially after initial hardware and launch facilities were developed with government funding. Arianespace has since launched numerous satellites as a commercial entity. The history of full private space transportation includes early efforts by German company OTRAG in the 20th century. Founded in 1975 as the first private company to attempt to launch a private spacecraft, testing of its OTRAG rocket began in 1977. The history also covers numerous modern orbital and suborbital launch systems in the 21st century. More recent commercial spaceflight projects include the suborbital flights of Virgin Galactic and Blue Origin, the orbital flights of SpaceX and other COTS participants. Development of alternatives to government-provided space launch services began in earnest in the 2000s. Private interests began funding limited development programs, but the US government later sponsored a series of programs to incentivize and encourage private companies to begin offering both cargo, and later, crew space transportation services. Lower prices for launch services after 2010, and published prices for standard launch services, have brought about significant space launch market competition that had not been present previously. By 2012, a private company had begun transporting cargo to and from the International Space Station, while a second private company was scheduled to begin making deliveries in 2013, ushering in a time of regular private space cargo delivery to and return from the government-owned space facility in low Earth orbit (LEO). In this new paradigm for LEO cargo transport, the government contracts for and pays for cargo services on substantially privately developed space vehicles rather than the government operating each of the cargo vehicles and cargo delivery systems. As of 2013, there is a mix of private and government resupply vehicles being used for the ISS, as the Russian Soyuz and Progress vehicles, and the European Space Agency (ESA) ATV (through 2014) and the Japanese Kounotori (through 2021) remain in operation after the 2011 retirement of the US Space Shuttle. In June 2013, British newspaper The Independent claimed that "the space race is flaring back into life, and it's not massive institutions such as NASA that are in the running. The old view that human space flight is so complex, difficult and expensive that only huge government agencies could hope to accomplish it is being disproved by a new breed of flamboyant space privateers, who are planning to send humans out beyond the Earth's orbit for the first time since 1972," particularly noting projects underway by Mars One, Inspiration Mars Foundation, Bigelow Aerospace and SpaceX.

… excerpt ends here. Continue reading the full article.

Illustrations

Private spaceflight: Space missions conducted between 1957 and 2020, divided into state and private runs
Space missions conducted between 1957 and 2020, divided into state and private runs
Private spaceflight: A juxtaposition of private (left) and public (right) spaceflight. From Kennedy Space Center LC-39, taken on April 6, 2022.Left: SpaceX, with Falcon 9 for Axiom Mission 1Right: NASA, with Space Launch System for Artemis 1
A juxtaposition of private (left) and public (right) spaceflight. From Kennedy Space Center LC-39, taken on April 6, 2022.Left: SpaceX, with Falcon 9 for Axiom Mission 1Right: NASA, with Space Launch System for Artemis 1
Private spaceflight illustration
Private spaceflight: Launch of a Proton rocket
Launch of a Proton rocket
Private spaceflight: First launch of the Pegasus rocket, from a NASA-owned B-52
First launch of the Pegasus rocket, from a NASA-owned B-52

Worked examples

Example 1 — a first encounter with Private spaceflight

Start with the simplest possible case. Write down what Private spaceflight claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Private spaceflight before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Private spaceflight ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Private spaceflight

In research
Private spaceflight appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Private spaceflight in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Private spaceflight is common in secondary-school and first-year university syllabi. It links to neighbouring topics Private spaceflight, Space applications, so understanding it makes those chapters shorter.
In everyday life
Look for Private spaceflight outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Private spaceflight in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Private spaceflight means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Private spaceflight out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Private spaceflight in simple terms?

Private spaceflight is any spaceflight development that is not conducted by a government agency, such as NASA or ESA. During the early decades of the Space Age, the government space agencies of the Soviet Union and United States pioneered space technology in collaboration with affiliated design bur…

Why does Private spaceflight matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Private spaceflight?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Private spaceflight.

Tags

  • Private spaceflight
  • Space applications

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