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Sputnik 1 (/ ˈ s p ʌ t n ɪ k, ˈ s p ʊ t n ɪ k /, Russian: Спутник-1, Satellite 1), sometimes referred to as simply Sputnik, was the first artificial Earth satellite.It was launched into an elliptical low Earth orbit by the Soviet Union on 4 October 1957 as part of the Soviet space program.
This is an accepted version of this page This is the latest accepted revision, reviewed on 2 January 2025. Objects intentionally placed into orbit This article is about human-made satellites. For moons, see Natural satellite. For other uses, see Satellite (disambiguation). Two CubeSats orbiting around Earth after being deployed from the ISS Kibō module's Small Satellite Orbital Deployer A ...
The satellite was built by a team at Bell Telephone Laboratories that included John Robinson Pierce, who created the project; [4] Rudy Kompfner, who invented the traveling-wave tube transponder that the satellite used; [4] [5] and James M. Early, who designed its transistors and solar panels. [6]
Amazônia-1 is the first Earth observation satellite developed by Brazil, helped by Argentina's INVAP, who provided the main computer, attitude controls and sensors, and the training of Brazilian engineers,[8] and launched at 04:54:00 UTC (10:24:00 IST) on 28 February 2021.
How satellite internet works. Satellite Internet generally relies on three primary components: a satellite – historically in geostationary orbit (or GEO) but now increasingly in Low Earth orbit (LEO) or Medium Earth orbit MEO) [23] – a number of ground stations known as gateways that relay Internet data to and from the satellite via radio waves (), and further ground stations to serve each ...
The company also supplies satellite components including star trackers, reaction wheels, solar cells and arrays, satellite radios, separation systems, as well as flight and ground software. [112] The expendable [113] Electron rocket [114] first launched in May 2017. [115] In August 2020, the company launched its first Photon satellite. [116]
A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military ...
Later that year she was also retained as vice president by Gerard K. O'Neill to handle business and regulatory matters for her newly invented satellite navigation technology, known as the Geostar System. [11] Rothblatt is a regulatory attorney. [12] She also served as a member of the Space Studies Institute (SSI) board of trustees. [13]