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The planet Mars has been explored remotely by spacecraft. Probes sent from Earth, beginning in the late 20th century, have yielded a large increase in...

An ion thruster, ion drive, or ion engine is a form of electric propulsion used for spacecraft propulsion. An ion thruster creates a cloud of positive...

The German Aerospace Center (German: Deutsches Zentrum für Luft- und Raumfahrt e.V., abbreviated DLR, literally German Center for Air- and Space-flight)...

A space rendezvous (/ˈrɒndeɪvuː/) is a set of orbital maneuvers during which two spacecraft, one of which is often a space station, arrive at the same...

A space toilet or zero-gravity toilet is a toilet that can be used in a weightless environment. In the absence of weight, the collection and retention...

Docking and berthing of spacecraft is the joining of two space vehicles. This connection can be temporary, or partially permanent such as for space station...

The Office of Commercial Space Transportation (generally referred to as FAA/AST or simply AST) is the branch of the United States Federal Aviation Administration...

Soyuz 7K-L1 "Zond" spacecraft was designed to launch cosmonauts from the Earth to circle the Moon without going into lunar orbit in the context of the...

Planetary Transportation Systems (PTS), formerly known as PTScientists and Part-Time Scientists, is a Berlin-based aerospace company. They developed the...

Soyuz 7K-OK was the first generation of Soyuz spacecraft and was flown between 1967 and 1971. The 7K-OK was used for the first ferry flights to the Salyut...

Space Act Agreements (abbreviated SAA) are a type of legal agreement specified in the National Aeronautics and Space Act of 1958 (and subsequent congressional...

Bradbury Landing is the August 6, 2012, landing site within Gale crater on planet Mars of the Mars Science Laboratory (MSL) Curiosity rover. On August...

Dong Fang Hong 1 (simplified Chinese: 东方红一号; traditional Chinese: 東方紅一號; pinyin: Dōngfānghóng Yīhào; lit. 'The East is Red no.1'), in the western world...

Mare Humorum /hjuːˈmɔːrəm/ (Latin hūmōrum, the "Sea of Moisture" or "Sea of Humors") is a lunar mare. The impact basin it is located in is 425 kilometers...

Below is a list of artificial objects currently[update] in heliocentric orbit. This list does not include upper stages from robotic missions (only the...