nanosecond, 49n
NASA, 161, 162, 185
nebulae, spectral analysis of, 38
nebulium, 38
Neptune, 129, 130, 165, 169, 180
neptunium, 130, 131
neutrinos, 21, 24, 91–93, 125
neutrons, 22, 24, 27, 142
Newton, Isaac, 34–35, 37, 40, 43–44, 75, 76, 78–79, 80, 100, 148, 175, 201
nitric acid, 191
nitrogen, 36, 124, 203
nuclear testing, 161
oblate spheroids, 141
Olympus Mons, 137
omega, 107–8
13123–Tyson (asteroid), 177
One Hundred Authors Against Einstein, 99
Oort, Jan, 170
Oort cloud, 170
organic molecules, 30
Orion Arm, 29
osmium, 126
oxygen, 30, 36, 117, 121, 123, 124, 190
in nebulae, 38
ozone, 30
Pacific Ocean, 181
palladium, 128
Pallas, 128–29, 132
panspermia, 204
Pasadena, Calif., 46
Passport to the Universe, 197–98
Penzias, Arno, 53–56, 156
Periodic Table of Elements, 36, 38, 115–17, 121, 124, 127, 130, 132
Perlmutter, Saul, 103, 104
perpetual motion machines, 45–46
Persian Gulf War (1991), 179
Phobos, 138
phosphorus, 127
photons, 20, 21, 25–26, 27–28, 48–50, 57–58
infrared, 50–51
visible light, 50
photosynthesis, 190
physics, laboratory-based vs. theoretical, 95
Piazzi, Giuseppe, 128
picosecond, 49n
Pioneer, 39
Planck, Max, 18–19
Planck era, 18–19
planets, 29, 35, 85, 195
rogue, 82
plasma, 37