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Kathleen pretends to be a space cadet and inspects her gear before exploring the universe. Charli imagines walking on the Moon and lifting Moon rocks. Kellie shows Chats a picture of the Solar System, and adds a pretend planet named after Chats, where everything starts with ch. Charli moves around on the imaginary Planet Move-a-Lot. Tim ...
Science fiction bibliographers E. F. Bleiler and Richard Bleiler, in the 1998 reference work Science-Fiction: The Gernsback Years, list various imaginary constituents of the pre-modern "science-fiction Solar System". Among these are planets between Venus and Earth, planets on the inside of a hollow Earth, and a planet "behind the Earth". [16]
Counter-Earth, a planet situated on the other side of the Sun from that of the Earth. Fifth planet (hypothetical), historical speculation about a planet between the orbits of Mars and Jupiter. Phaeton, a planet situated between the orbits of Mars and Jupiter whose destruction supposedly led to the formation of the asteroid belt. This hypothesis ...
A fictional astronaut is preferably part of a real space program, like NASA or the Soviet/Russian space program, or fictional knockoffs of the same (e.g. ANSA, IASA). A fictional astronaut preferably uses space travel technology within the realm of the possible.
[1] [13] Bizarro World in the Superman franchise is a cubic planet, rendered that shape by the actions of Superman. [1] [9] Earth itself gets turned into a cube in Henry H. Gross's 1987 short story "Cubeworld", and an altogether artificial planet-sized cube is the setting of G. David Nordley's 2009 novel To Climb a Flat Mountain. [9]
The space station is whizzing around Earth at about five miles per second (18,000 mph), according to NASA. That means time moves slower for the astronauts relative to people on the surface.
Croatian Space Agency (CROSA), proposed in 2020, currently operates as NGO Adriatic Aerospace Association (A3), at progress stage. [127] [128] Djibouti National Space Office, announced in 2022, at bill stage. [129] Guatemala Space Agency, proposed in 2019, at progress stage. [130] [131] Honduras Space Agency (AEH), proposed in 2018, at progress ...
The term artificial planet has also been used to describe other types of megastructures, such as large spherical space stations. [1] [2] D. R. Glover defined artificial planet as "a self-sufficient, independent ecosystem in space", noting that size of such an entity is less relevant and that it could be much smaller than what is traditionally defined as a planet.