On 29 April, China launched the first module of its space station-a milestone in Beijing's ambitious plan to establish a permanent human presence in space.
Billions of dollars have been poured into space exploration as China seeks to reflect its rising global stature and growing technological might, following in the footsteps of the United States, Russia and Europe.
The Tianhe core module, which houses life support equipment and a living space for astronauts, was launched from Wenchang in China's tropical Hainan province on a Long-March 5B rocket, state television showed.
The Tiangong space station, whose name means "Heavenly Palace", is expected to be operational in 2022 after around 11 missions to deliver more modules and assemble them in orbit.
The completed station will be similar to the Soviet "Mir" station that orbited Earth from the 1980s until 2001.
The Chinese space station is expected to remain in low orbit at between 400 and 450 kilometres above Earth for a lifespan of around 15 years.
The completed station, weighing little more than 90 tons, will be around a quarter the size of the International Space Station.
The station will have two other modules for scientific study and will be equipped with solar panels as well as experimental equipment including an ultracold atomic experiment apparatus, according to the Chinese Society of Astronautics.
China launched the Tiangong-1 lab, its first prototype module intended to lay the groundwork for the permanently crewed station, in September 2011.
The lab disintegrated on re-entry into the Earth's atmosphere in 2018, two years after it ceased functioning.
A second lab, the Tiangong-2, was launched into orbit in 2016.
The International Space Station -- a collaboration between the US, Russia, Canada, Europe and Japan -- is due to be retired after 2024, although NASA has said it could potentially remain functional beyond 2028.
With the retirement of the ISS, which received its first crew in 2000, China's Tiangong could become the only space station in Earth's orbit.
Beijing does not have specific plans to use its space station for international cooperation like the ISS, but Chinese space authorities have said they are open to foreign collaboration, although the scope of that cooperation is as yet unclear.
The European Space Agency has sent astronauts to China to receive training in order to be ready to work inside the Chinese space station once it is launched.
China also said in March it was planning to build a separate lunar space station with Russia.
The facility, planned for either the surface or the orbit of the moon, would house experimental research facilities and would be Beijing's biggest international space cooperation project to date.
The country has come a long way since its first satellite in 1970.