Artificial planet - Wikipedia
WEBAn artificial planet [1] (also known as a planetary replica or a replica planet) [2] is a proposed stellar megastructure. Its defining characteristic is that it has sufficient mass to generate its own gravity field that is strong enough to prevent atmosphere from escaping, [3] [4] although the term has been sometimes used to describe other ...
The science-fiction scenario of an artificial planet is already here
WEBFeb 18, 2021 · A study published in the journal Nature reveals that global mass of goods produced by humankind now exceeds that of all life on earth. This is a stark warning on our growing domination of the...
Cosmic Megastructures - Could We Ever Build an Artificial World?
WEBJul 28, 2014 · The term "artificial world" can be interpreted in two ways. The literal interpretation is a planetary replica—a massive chunk of rock fabricated to be essentially indistinguishable from real...
Searching for Signs of Intelligent Life: Technosignatures
WEBJul 11, 2023 · Among the possibilities are laser or radio pulses, signs of artificial chemicals in the atmospheres of distant planets, or “Dyson spheres” – massive structures built around stars to collect their energy.
Types Of Satellites By Orbits, Functions, And Practical Uses
WEBMar 22, 2023 · The 5 main types of satellites based on their orbits are: low Earth orbit (LEO); medium Earth orbit (MEO); geostationary orbit (GEO); Sun-synchronous orbit (SSO); geostationary transfer orbit (GTO). Let’s dig deeper into the nature of these 5 different types of satellites’ orbits to learn more about their characteristics and potential uses.
What Is a Satellite? | NASA Space Place – NASA Science for Kids
WEBSep 17, 2024 · Thousands of artificial, or man-made, satellites orbit Earth. Some take pictures of the planet that help meteorologists predict weather and track hurricanes. Some take pictures of other planets, the Sun, black holes , dark matter or faraway galaxies .
The science-fiction scenario of an artificial planet is already here
WEBFeb 19, 2021 · This vision of a planet devoured by humans, is common in science-fiction literature and cinema, and underpins many masterpieces: Trantor in Isaac Asimov's Foundation trilogy, the Death Star in Star Wars, and Alpha in Luc Besson's Valerian and the City of a Thousand Planets.
Satellite | Orbits, Communication & Navigation | Britannica
WEBSatellite, natural object (moon) or spacecraft (artificial satellite) orbiting a larger astronomical body. Most known natural satellites orbit planets; the Earth’s Moon is the most obvious example. All the planets in the solar system except Mercury and Venus have natural satellites.
Artificial Satellites - Universe Today
WEBDec 2, 2009 · Artificial satellites are human-built objects orbiting the Earth and other planets in the Solar System. This is different from the natural satellites, or moons, that orbit planets, dwarf...
Artificial Satellites: Types, Working process and Applications
WEBArtificial satellites are human-built objects orbiting the Earth and other planets in the Solar System. They are used to study the Earth, other planets, aiding communication, and even to observe the distant universe.
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