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Tunnel in the Sky is a juvenile science fiction novel by American writer Robert A. Heinlein, published in 1955 by Scribner's as one of the Heinlein juveniles.The story describes a group of students sent on a survival test to an uninhabited planet, who soon realise they are stranded there.
In planetary science, planetary differentiation is the process by which the chemical elements of a planetary body accumulate in different areas of that body, due to their physical or chemical behavior (e.g. density and chemical affinities). The process of planetary differentiation is mediated by partial melting with heat from radioactive ...
Sad Planets describes Solaris as an "enigma", calling some of the book's most moving passages those that describe the planet itself, with no human presence. [2] Green Planets states that Solaris "resists both physical and epistemic human penetration", describing it as "an impervious mirror surface". Ironically, the planet itself appears to ...
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]
Stars, although there is a certain poetical reference to them in much science fiction, do not actually feature in much depth in most SF stories. There are a couple of notable exceptions. However, in the main, the stars themselves remain relatively untouched in the pages of SF, and exist simply as a means of providing light and warmth to planets ...
Orphans of the Sky is a science fiction novel by American writer Robert A. Heinlein (1907–1988), consisting of two parts: "Universe" (Astounding Science Fiction, May 1941) and its sequel, "Common Sense" (Astounding Science Fiction, October 1941). The two novellas were first published together in book form in 1963.
The rain-out model is a model of planetary science that describes the first stage of planetary differentiation and core formation. According to this model, a planetary body is assumed to be composed primarily of silicate minerals and NiFe (i.e. a mixture of nickel and iron). If temperatures within this body reach about 1500 K, the minerals and ...
Between Planets is a juvenile science fiction novel by American writer Robert A. Heinlein, originally serialized in Blue Book magazine in 1951 as "Planets in Combat". [1] It was published in hardcover that year by Scribner's as part of the Heinlein juveniles .