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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 Blue Marble is a photograph of Earth taken on December 7, 1972, by either Ron Evans or Harrison Schmitt aboard the Apollo 17 spacecraft on its way to the Moon.Viewed from around 29,400 km (18,300 mi) from Earth's surface, [1] a cropped and rotated version has become one of the most reproduced images in history.
Earth orbiter, first animal in orbit, a dog named Laika [2] [3] [4] Explorer 1: 1 February 1958 Earth orbiter; discovered Van Allen radiation belts [5] Vanguard 1: 17 March 1958 Earth orbiter; oldest spacecraft still in Earth orbit [6] Luna 1: 2 January 1959 First lunar flyby (attempted lunar impact?); first artificial satellite in heliocentric ...
The new discovery increases the moons orbiting the "jewel of our solar system" to 82, surpassing Jupiter
Fifty years to the day after taking the photo, William Anders observed, "We set out to explore the moon and instead discovered the Earth." [18] In October 2018, two of the craters seen in the photo were named Anders' Earthrise and 8 Homeward by the Working Group for Planetary System Nomenclature (WGPSN) of the International Astronomical Union ...
There are 293 confirmed moons in our cosmic neighborhood. By studying these worlds, astronomers hope to learn about ancient asteroid collisions, space volcanoes, and the origins of life itself.
2015 – New Horizons spacecraft flies by Pluto, providing the first ever sharp images of its surface, and its largest moon Charon. [247] 2017 – 'Oumuamua, the first known interstellar object crossing the Solar System, is identified. [248] 2019 – Closest approach of New Horizons to Arrokoth, a KBO farther than Pluto. [249]
Now, a new study from the University of Nevada argues that, out of the chaos of that collision, polar circumbinary “moons” might’ve existed in the early days of that Earth-Moon system.