Ridley, Matt
RNA (ribonucleic acid)
Roentgen, Wilhelm
Rothschild, Lionel Walter
Royal Institution (London)
Royal Society (London)
Royal Society of Edinburgh
Rozier, Pilatre de
Rudwick, Martin J. S.
Rumford, Count von (Benjamin Thompson)
Runcorn, S. K.
Ruska, Ernst
Russell, Bertrand
rust
Rutherford, Ernest
S
Sacks, Oliver
Sagan, Carl
Sagan, Dorion
St. Helens, Washington
Sandage, Allan
Sandler, Howard
Scheele, Karl (Carl)
Schimper, Karl
Schouten, Peter
Schrodinger, Erwin
Schultz, Gwen
Schwalbe, Gustav
Schwann, Theodor
Schwartz, Jeffrey
sea cow
Sedgwick, Adam
sharks
Sheehan, Peter
Shipman, Pat
Shoemaker, Eugene
SHRIMP and SHRIMP II
Siegel, Lee J.
silicon
Simpson, George Gaylord
Sirius
Sykes, Bryan
slime molds (myxomycetes)
Slipher, Vesto
smallpox
Smith, A. J. E.
Smith, Anthony
Smith, Robert B.
Smith, William
Snow, C. P.
Sobel, Dava
Soddy, Frederick
sodium; chloride (salt)
solar system; asteroids; birth of Earth’s moon; birth of the sun and planets; elliptical orbit of the planets; moons in; size of.
Somervell, Howard
space.
spacetime
Spencer, Herbert
Sprigg, Reginald
stars: binary; Cepheid variable; distance between, average,; energy production of; galaxies and number of; Milky Way, number in; neutron,; red giants; “standard candles”; stellar classifications; supernovae; visible.
Steller, Georg
Stephen’s Island flightless wren
Strathern, Paul
Strickland, H. E.
Suess, Eduard
Sulston, John
Sun: birth of; Earth’s atmosphere and; solar flares; solitary, uniqueness of
supernovae; CCD search; danger to Earth of; hunting; 1a type; number found; rarity; visible to naked eye
superstring theory
Surowiecki, James
sweating sickness
Swift, Jonathan