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This is a timeline of space exploration which includes notable achievements, first accomplishments and milestones in humanity's exploration of outer space.. This timeline generally does not distinguish achievements by a specific country or private company, as it considers humanity as a whole.
The timeline of discovery of Solar System planets and their natural satellites charts the progress of the discovery of new bodies over history. Each object is listed in chronological order of its discovery (multiple dates occur when the moments of imaging, observation, and publication differ), identified through its various designations (including temporary and permanent schemes), and the ...
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 .
Timeline of first images of Earth from space; List of International Space Station expeditions; List of human spaceflights to the International Space Station; Uncrewed spaceflights to the International Space Station; List of crew of the International Space Station; List of visitors to the International Space Station; List of interplanetary voyages
The Hubble Space Telescope, the first large optical telescope in orbit, is launched using the Space Shuttle, but astronomers soon discovered that it is crippled by a problem with its mirror. A complex repair mission in 1993 allows the telescope to start producing spectacular images of distant stars, nebulae, and galaxies.
The principal change was to space leap years differently so as to make the average calendar year 365.2425 days long, more closely approximating the 365.2422-day 'tropical' or 'solar' year that is determined by the Earth's revolution around the Sun. The reform advanced the date by 10 days: Thursday 4 October 1582 was followed by Friday 15 ...
Discovery and exploration of the Solar System – Timeline of Solar System astronomy; Timeline of discovery of Solar System planets and their moons; Timeline of Solar System exploration; Timeline of first images of Earth from space; Development of hypotheses Geocentric model – Heliocentrism – Historical models of the Solar System; Planets ...
Space exploration. Big science – Term used to describe a series of changes in science occurred in industrial nations; Exploration – Process of investigating unfamiliar things; High tech – Most advanced technology available; Space – Void between celestial bodies; Spaceflight – Flight into or through outer space