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Sputnik 1 (/ˈspʌtnɪk, ˈspʊtnɪk/, Russian: Спутник-1, Satellite 1) was the first artificial Earth satellite. It was launched into an elliptical low Earth...

The far side of the Moon is the lunar hemisphere that always faces away from Earth, opposite to the near side, because of synchronous rotation in the Moon's...

Human spaceflight (also referred to as manned spaceflight or crewed spaceflight) is spaceflight with a crew or passengers aboard a spacecraft, often with...

Orion (Orion Multi-Purpose Crew Vehicle or Orion MPCV) is a partially reusable crewed spacecraft used in NASA's Artemis program. The spacecraft consists...

Chang'e 4 (/tʃɑːŋˈə/; Chinese: 嫦娥四号; pinyin: Cháng'é Sìhào; lit. 'Chang'e No. 4') is a robotic spacecraft mission in the Chinese Lunar Exploration Program...

Animals in space originally served to test the survivability of spaceflight, before human spaceflights were attempted. Later, many species were flown to...

Soyuz-2 (Russian: Союз-2, lit. 'Union-2') (GRAU index 14A14) is a modernised version of the Soviet Soyuz rocket. In its basic form, it is a three-stage...

Philae (/ˈfaɪliː/ or /ˈfiːleɪ/) was a robotic European Space Agency lander that accompanied the Rosetta spacecraft until it separated to land on comet...

Hercules is a constellation named after Hercules, the Roman mythological hero adapted from the Greek hero Heracles. Hercules was one of the 48 constellations...

A Multi-Purpose Logistics Module (MPLM) is a large pressurized container that was used on Space Shuttle missions to transfer cargo to and from the International...

Space architecture is the theory and practice of designing and building inhabited environments in outer space. This mission statement for space architecture...

The year 2010 saw a number of notable events in worldwide spaceflight activities. These included the first test flight of the SpaceX Dragon commercial...

Underwater habitats are underwater structures in which people can live for extended periods and carry out most of the basic human functions of a 24-hour...

Taiwan Space Agency (short as TASA), formerly the National Space Organization from 1991 to 2023, is the national civilian space agency of the Republic...

The Soyuz-7 (Russian: Союз-7) or Amur (Russian: Аму́р) is a partially-reusable, methane–fueled, orbital launch vehicle currently in the design concept...

The Lost Cosmonauts or Phantom Cosmonauts are subjects of a conspiracy theory, which alleges that Soviet and Russian space authorities have concealed the...

The Hyades (/ˈhaɪ.ədiːz/; Greek Ὑάδες, also known as Caldwell 41, Collinder 50, or Melotte 25) is the nearest open cluster and one of the best-studied...

Progress MS-06 (Russian: Прогресс МC-06), identified by NASA as Progress 67P, was a Progress spaceflight operated by Roscosmos to resupply the International...

RADARSAT-2 is a Canadian Space Agency (CSA) Earth observation satellite. It launched on 14 December 2007 aboard a Starsem Soyuz-FG rocket from Baikonur...

The Lunar Orbital Station (Russian: Лунная Орбитальная Станция, romanized: Lunnaya Orbital'naya Stantsiya; LOS) is a proposed Russian space station which...