Nov 13, 2025 · Space exploration - Astronauts, Technology, Discoveries: Until the dawn of spaceflight, astronomers were limited in their ability to observe objects beyond the solar system to those portions …

Oct 16, 2025 · For a description of space as the region of the universe beyond the Earth and its atmosphere, see Cosmos. For coverage of the scientific investigation of this region, see space …

Nov 13, 2025 · Space exploration - History, Technology, Benefits: Since ancient times, people around the world have studied the heavens and used their observations and explanations of astronomical …

Nov 13, 2025 · Space exploration, investigation, by means of crewed and uncrewed spacecraft, of the reaches of the universe beyond Earth’s atmosphere and the use of the information so gained to …

Nov 13, 2025 · The first human to go into space, Yuri Gagarin, was launched, again by the Soviet Union, for a one-orbit journey around Earth on April 12, 1961. Within 10 years of that first human flight, …

Nov 13, 2025 · Space exploration and development have been stimulated by a complex mixture of motivations, including scientific inquiry, intense competition between national governments and …

Nov 13, 2025 · After Gagarin’s 1961 flight, space missions involving human crews carried out a range of significant research, from on-site geologic investigations on the Moon to a wide variety of …

space exploration, Investigation of the universe beyond Earth’s atmosphere by means of manned and unmanned spacecraft.

You’ll find on this page a collection of facts about everything from the size of the universe to the business of space. All of these facts and numbers add up to a vivid portrait of space.

Oct 29, 2025 · Space exploration - Applications, Benefits, Technology: Space visionaries in the early 20th century recognized that putting satellites into orbit could furnish direct and tangible benefits to …