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USA (NASA) OAO-2: 21 December 1968: First human excursion beyond low Earth orbit. First in-person observations of Earth from a distance. First Trans-Earth injection. USA (NASA) Apollo 8 [25] 24 December 1968 First human flight to another celestial body (the Moon) and to enter its gravitational influence. USA (NASA) Apollo 8 [25] January 1969
0s: 1st century in science; 100s: 2nd century in science; 200s: 3rd century in science; 300s: 4th century in science; 400s: 5th century in science; 500s: 6th century in science; 600s: 7th century in science; 700s: 8th century in science; 800s: 9th century in science; 900s: 10th century in science; 1000s: 11th century in science; 1100s: 12th ...
List of science timelines; The year 1900 in science and technology involved some significant events, listed below.
The timeline begins at the Bronze Age, as it is difficult to give even estimates for the timing of events prior to this, such as of the discovery of counting, natural numbers and arithmetic. To avoid overlap with timeline of historic inventions , the timeline does not list examples of documentation for manufactured substances and devices unless ...
On July 14, with the successful encounter of Pluto by NASA's New Horizons spacecraft, the United States became the first nation to explore all of the nine major planets recognized in 1981. Later on September 14, LIGO was the first to directly detect gravitational waves.
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 .
The Royal National Lifeboat Institution was founded in 1824.
Along with the faint strip of the Milky Way, they altogether conform the idea of the firmament, which as viewed from Earth it seems to be a consistent, solid unit rotating smooth and uniformly. This leads to the intuitive idea of a geocentric universe. Presence of the Moon, with its phases. Tides. Recognition of meteorological phenomena as sub ...