- extraterrestrially
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In an extraterrestrial way; not on Earth.
One can well imagine rational beings arising, either on earth or extraterrestrially, who could be biologically independent...
Wikipedia foundation.
One can well imagine rational beings arising, either on earth or extraterrestrially, who could be biologically independent...
Wikipedia foundation.
extraterrestrial — extraterrestrially, adv. /ek streuh teuh res tree euhl/, adj. 1. outside, or originating outside, the limits of the earth. n. 2. an extraterrestrial being: a science fiction novel about extraterrestrials conquering the earth. [1865 70; EXTRA +… … Universalium
Abiogenesis — Primordial soup redirects here. For the board game, see Primordial Soup (board game). Origin of life redirects here. For views on the origins of life outside the natural sciences, see Creation myth. Pre Cambrian stromatolites in the Siyeh… … Wikipedia
DNA — For a non technical introduction to the topic, see Introduction to genetics. For other uses, see DNA (disambiguation). The structure of the DNA double helix. The atoms in the structure are colour coded by element and the detailed structure of two … Wikipedia
Extraterrestrial life — For fiction, see Extraterrestrials in fiction. For other uses, see Alien (disambiguation). A 1967 Soviet Union 16 kopeks postage stamp, depicting a satellite from an imagined extraterrestrial civilization … Wikipedia
Life — For other uses, see Life (disambiguation). Life (Biota / Vitae / Eobionti) … Wikipedia
Panspermia — (Greek: πανσπερμία from πᾶς/πᾶν (pas/pan) all and σπέρμα (sperma) seed ) is the hypothesis that life exists throughout the Universe, distributed by meteoroids, asteroids and planetoids.[1] Panspermia proposes tha … Wikipedia
RNA world hypothesis — A comparison of RNA (left) with DNA (right), showing the helices and nucleobases each employs. The RNA world hypothesis proposes that life based on ribonucleic acid (RNA) pre dates the current world of life based on deoxyribonucleic acid (DNA),… … Wikipedia
Uracil — Uracil … Wikipedia
Xanthine — Not to be confused with xanthene. Xanthine … Wikipedia
Nucleobase — Base pairing in RNA. Nucleobases in blue. Hydrogen bonds in red. Nucleobases are a group of nitrogen based molecules that are required to form nucleotides, the basic building blocks of DNA and RNA. Nucleobases provide the molecular structure… … Wikipedia