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  2. Timeline of space exploration - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_space_exploration

    Publication of Exploration of the Universe with Rocket-Propelled Vehicles [1] that showed physical space exploration was theoretically possible, including the Tsiolkovsky rocket equation, multi staged rockets and using liquid oxygen and liquid hydrogen in liquid propellant Russia Konstantin Tsiolkovsky [2] 1914

  3. Space exploration - Wikipedia

    en.wikipedia.org/wiki/Space_exploration

    Space exploration also gives scientists the ability to perform experiments in other settings and expand humanity's knowledge. [67] Another claim is that space exploration is a necessity to humankind and that staying on Earth will eventually lead to extinction. Some of the reasons are lack of natural resources, comets, nuclear war, and worldwide ...

  4. List of uncrewed NASA missions - Wikipedia

    en.wikipedia.org/wiki/List_of_uncrewed_NASA_missions

    The Magellan spacecraft was a space probe sent to the planet Venus, the first uncrewed interplanetary spacecraft to be launched by NASA since its successful Pioneer Orbiter, also to Venus, in 1978. It was also the first deep-space probe to be launched on the Space Shuttle. [38] In 1993, it employed aerobraking techniques to lower its orbit.

  5. Timeline of Solar System exploration - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_Solar_System...

    This is a timeline of Solar System exploration ordering events in the exploration of the Solar System by date of spacecraft launch. It includes: It includes: All spacecraft that have left Earth orbit for the purposes of Solar System exploration (or were launched with that intention but failed), including lunar probes .

  6. Multi-mission radioisotope thermoelectric generator - Wikipedia

    en.wikipedia.org/wiki/Multi-Mission_Radioisotope...

    Diagram of a MMRTG. The multi-mission radioisotope thermoelectric generator (MMRTG) is a type of radioisotope thermoelectric generator (RTG) developed for NASA space missions [1] such as the Mars Science Laboratory (MSL), under the jurisdiction of the United States Department of Energy's Office of Space and Defense Power Systems within the Office of Nuclear Energy.

  7. Outline of space exploration - Wikipedia

    en.wikipedia.org/wiki/Outline_of_space_exploration

    Module at the International SpacepeorlEleine Station, launched into space on the U.S. Space Shuttle mission STS-122 in 2008. The following outline is provided as an overview of and topical guide to space exploration. Space exploration – use of astronomy and space technology to explore outer space. [1]

  8. List of human spaceflights - Wikipedia

    en.wikipedia.org/wiki/List_of_human_spaceflights

    Apollo 7 heads into orbit with its crew of three, 1968. This is a list of all crewed spaceflights throughout history. Beginning in 1961 with the flight of Yuri Gagarin aboard Vostok 1, crewed spaceflight occurs when a human crew flies a spacecraft into outer space.

  9. Spaceflight before 1951 - Wikipedia

    en.wikipedia.org/wiki/Spaceflight_before_1951

    Test Guidance System [14] / Hermes A-2 Telemetry System Test [17]: 359–360 24 January: Successful Project Hermes launch, apogee: 50 kilometres (31 mi) 20 February 18:16 V-2 V-2 No. 20 White Sands LC-33 GE / US Army Blossom I Air Materiel Command [14] Suborbital