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Countries (and successor states) whose citizens have flown in space as of January 2024. The criteria for determining who has achieved human spaceflight vary. The Fédération Aéronautique Internationale (FAI) defines spaceflight as any flight over 100 kilometres (62 mi), while in the United States, professional, military and commercial astronauts who travel above an altitude of 50 miles (80 ...
Currently there are two fully operational space stations – the International Space Station (ISS) and China 's Tiangong Space Station (TSS), which have been occupied since October 2000 with Expedition 1 and since June 2022 with Shenzhou 14. The highest number of people at the same time on one space station has been 13, first achieved with the ...
The record for most time in space is held by Russian cosmonaut Oleg Kononenko, who has spent 1109.848 days in space over five missions and is currently in space onboard Soyuz MS-24/25's one year long-duration mission on ISS. As this mission lasts 374 days, Kononenko will have spent a total of 1,111 days in space.
Countries represented only by suborbital space flyers are shaded. Note: citizens from the now-defunct East Germany, Czechoslovakia, and Soviet Union have also flown in space. Since the first human spaceflight by the Soviet Union, citizens of 49 countries have flown in space. For each nationality, the launch date of the first mission is listed.
This is an accepted version of this page This is the latest accepted revision, reviewed on 18 September 2024. List of great powers from the early modern period to the post cold war era This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "List of modern ...
Scott Carpenter, Gordon Cooper, John Glenn, Gus Grissom, Wally Schirra, Alan Shepard and Deke Slayton. The first group of astronauts selected by NASA were for Project Mercury in April 1959. All seven were military test pilots, a requirement specified by President Eisenhower to simplify the selection process.
The British Empire (red) and Mongol Empire (blue) were the largest and second-largest empires in history, respectively. The precise extent of the either empire at its greatest territorial expansion is a matter of debate among scholars. Several empires in human history have been contenders for the largest of all time, depending on definition and ...
Astronomical radio source. An astronomical radio source is an object in outer space that emits strong radio waves. Radio emission comes from a wide variety of sources. Such objects are among the most extreme and energetic physical processes in the universe.