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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 chronology of the universe describes the history and future of the universe according to Big Bang cosmology.. Research published in 2015 estimates the earliest stages of the universe's existence as taking place 13.8 billion years ago, with an uncertainty of around 21 million years at the 68% confidence level.
Mission name Ref(s). 1903 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
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 ...
The timeline of the Universe lists events from its creation to its ultimate final state. For a timeline of the universe from the present to its presumed conclusion, see: Timeline of the far future Chronology of the universe
28 BCE – Chinese history book Book of Han makes earliest known dated record of sunspot. [34] c. 150 CE – Claudius Ptolemy completes his work Almagest, that codifies the astronomical knowledge of his time and cements the geocentric model in the West, and it remained the most authoritative text on astronomy for more than 1,500 years.
This is an accepted version of this page This is the latest accepted revision, reviewed on 22 February 2025. Hypothetical group of multiple universes Not to be confused with Metaverse. "Multiverses" redirects here. Not to be confused with MultiVersus. For other uses, see Multiverse (disambiguation). Part of a series on Physical cosmology Big Bang · Universe Age of the universe Chronology of ...
[citation needed] [a] The farthest confirmed multiplanetary system is OGLE-2012-BLG-0026L, at 13,300 light-years (4,100 pc) away. [ 3 ] The table below contains information about the coordinates, spectral and physical properties, and the number of confirmed (unconfirmed) planets for systems with at least 2 planets and 1 not confirmed.