Search results
Results from the WOW.Com Content Network
The thin disk of our galaxy began to form when the universe was about 5 billion years old or 9 ± 2 Gya. [15] The Solar System formed at about 9.2 billion years (4.6 Gya), [5]: 22.2.3 with the earliest evidence of life on Earth emerging by about 10 billion years (3.8 Gya).
This is a radio galaxy. At the time, the most remote object was quasar OQ172, at z=3.53, found in 1974. [76] 3C 411: 1975 – z=0.469 This is a radio galaxy. At the time, the most remote object was quasar OQ172, at z=3.53, found in 1974. [76] From 1964 to 1997, the title of most distant object in the universe were held by a succession of ...
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; Timeline of the universe
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 .
First extended (multi-year) orbital exploration of Venus (from 1978 to 1992). USA (NASA) Pioneer Venus Orbiter: 5 March 1979: Jupiter flyby (closest approach 349,000 km) Encounters with five Jovian moons. Discovery of volcanism on Io. USA (NASA) Voyager 1: 1 September 1979: First flyby of Saturn. First photograph of Titan from deep space. USA ...
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 ...
1989 – Margaret Geller and John Huchra discover the "Great Wall", a sheet of galaxies more than 500 million light years long and 200 million wide, but only 15 million light years thick. 1990 – Michael Rowan-Robinson and Tom Broadhurst discover that the IRAS galaxy IRAS F10214+4724 is the brightest known object in the Universe.
c. 2nd century BCE–3rd century CE – In Hindu cosmology, the Manusmriti (1.67–80) and Puranas describe time as cyclical, with a new universe (planets and life) created by Brahma every 8.64 billion years. The universe is created, maintained, and destroyed within a kalpa (day of Brahma) period lasting for 4.32 billion years, and is followed ...