A for Andromeda
Abyss, The
Alien
alien life, a gallery of possibilities
Allen, Irwin (1916–1991)
android
Anthony, Piers (1934–)
apergy
Ariosto, Ludovico (1474–1533)
artificial gravity
Asimov, Isaac (1920–1992)
Atterley, Joseph (1775–1861)

Bacon, Francis (1561–1626)
Barsoom
Bergerac, Cyrano de (1619–1655)
bistromathics
Black Cloud, The
Blish, James (1921–1975)
Blob, The
blood, of extraterrestrials
Bonestell, Chesley (1888–1987)
Borg
Borges, Jorge Luis (1899–1986)
Bova, Ben (1932–2020)
Bradbury, Ray (1920–2012)
Burroughs, Edgar Rice (1875–1950)

Caidin, Martin (1927–1997)
Campbell, Jr., John W. (1910–1971)
Cavendish, Margaret (1623–1673)
Childhood's End
City and the Stars, The
Clarke, Arthur C. (1917–2008)
Clement, Hal (1922–2003)
Close Encounters of the Third Kind
Collier's space program
Columbiad
Conquest of Space, The
Contact
Cromie, Robert (1856–1907)

Day the Earth Stood Still, The
deflector shield
Defoe, Daniel (1660–1731)
Destination Moon
Disney, Walt (1901–1966)
Doomsday Machine
Doyle, Arthur Conan (1859–1930)
Dragon's Egg

E.T.: The Extraterrestrial
Eyraud, Achille (1821–1882)

First Men in the Moon
Forbidden Planet
Frankenstein
From the Earth to the Moon

genome, interstellar transmission of
Godwin, Francis (1562–1633)
Gore, John Ellard (1845–1910)
Greg, Percy (1836–1889)
Griffith, George (1857–1906)

Hale, Edward Everett (1822–1909)
Heinlein, Robert A. (1907–1988)
hyperspace

Invaders From Mars
Invasion of the Body Snatchers
It Came From Outer Space

Klemplerer Rosette

Lasswitz, Kurd (1848–1910)
Last and First Men
Leinster, Murray (1896–1975)
Lem, Stanislaw (1921–2006)
Lewis, C. S. (1898–1963)
Lindsay, David (1878–1945)
Listeners, The
Lost In Space
Lucian of Samosata (c. AD 120–180)

Martian Chronicles, The
McDermot, Murtagh
Micromegas
mind transfer
Mission of Gravity
Moon Hoax, The Great
My Favorite Martian

Niven, Larry (1938–)

ocean planet
Orion III Pan Am "Space Clipper" (from 2001: A Space Odyssey)

Pal, George (1908–1980)
Poe, Edgar Allan (1809–1849)
Pope, Gustavus (1828–1902)

Rendezvous With Rama
replicator
Ringworld
Robby the Robot
Roddenberry, (Eu)Gene Wesley (1921–1991)
Rosny, J. H. (the Elder, or Ainé) (1856-1940)
R.U.R. (Rossum's Universal Robots)

science fiction involving extraterrestrials, up to 1900
science fiction involving extraterrestrials, 1900-1940
science fiction involving extraterrestrials, after 1940
science fiction involving extraterrestrials, in film and television
Serviss, Garrett (Putnam) (1851–1929)
sleeper ship
Solaris
Space 1999
Space Station V (from 2001: A Space Odyssey)
Spielberg, Steven (1947–)
Stapledon, (William) Olaf (1886–1950)
Star Maker
Star Trek
Star Wars
Swift, Jonathan and the moons of Mars

TARDIS
teleportation
Thing From Another World, The
This Island Earth
time portal
tractor beam
transporter (Star Trek)
Tucker, George (1775–1861)
2001: A Space Odyssey

van Vogt, A(lfred) E(lton) (1912–2000)
Verne, Jules (1828–1905)
Voltaire

War of the Worlds
Weinbaum, Stanley G(rauman)(1902–1935)
Wells, Herbert George (1866–1946)
When Worlds Collide
Wilkins, John (1614–1672)
Woman in the Moon