The Astronomy Book

(National Geographic (Little) Kids) #1

INDEX 351


Swedenborg, Emanuel 92
Swift, Jonathan 62


T


Tarter, Jill 339
Taylor, Joseph 236
Taylor, Matt 310
technology 15, 258–9
Tegmark, Max 339
telescopes
early 42–3
Galileo 44, 55, 56–63
improvements in 82, 258
largest 326–7
radio 179, 210 –11, 234
reflecting 43, 58, 84, 85, 104–5
refracting 43, 58, 60, 61
space 145, 188–95, 304–5
ultraviolet 205
X-ray 205
see also by name
Tereshkova, Valentina 208
Thales of Miletus 18
Thorne, Kip 254, 258, 328, 330 , 331
tides 13, 73
timekeeping 13, 62
Timocharis 22
Tinsley, Beatrice 240– 41
Titan 65, 262, 264, 266
Titius, Johann 96–7
Tombaugh, Clyde 13, 84, 118, 145, 286,
314, 315, 338
Trans-Neptunian Object (TNO) 184
Triton 106, 266, 267
trojans 96, 99
Tsiganis, Kleomenis 312–13
Tully, Brent 240
twin paradox 153
Tychonic model 44–7


U


Uhuru X-ray Observatory 190, 205, 214,
216, 254
Ulamec, Stephan 309
Ulrich, Roger 213
Ulugh Beg 19, 28, 30–31
universe
age of 282


cosmic inflation 272–3, 274, 282
expansion of 137, 158, 168, 169, 170 ,
171, 172–7, 180, 199, 224, 240, 241,
258, 259, 268, 274, 282, 284, 296,
298–303
future of 300, 301, 303
mapping 296
measuring 130–37
multiple 271
origin of 12, 15, 145, 168–71, 196–7
shape of 272–3, 274
study of 14
Unsöld, Albrecht 162
Uranus
discovery of 82, 83, 84–5, 96, 97,
106, 184
exploration of 264, 266–7
planetary migration 312–13
Urey, Harold 187

V


variable stars 48–9, 86 , 102, 110, 133
Venus
exploration of 262
life on 230
phases of 34, 63
transit of 42, 64
Viking landers 322
Voyager spacecraft 230, 234, 235, 258,
259, 262–7

W


Walther, Bernhard 44
Wang Chun 28–9
water
comets 207, 308, 309, 311
Earth 308, 309, 311
Europa 266
Goldilocks zone 294–5
Mars 117, 324, 325
Webb, James E. 244
Weber, Joseph 328
Webster, Louise 254
Weiss, Rai 328, 330
Weizsäcker, Carl 166
Wheeler, John 255
Whipple, Fred 206, 207 , 286
Whirlpool galaxy 27, 83, 105

white dwarfs 49, 111, 124, 126, 127, 138,
141 , 145, 178 , 180, 302
White, Ed 247
white holes 220–21
Wilkinson, David 224, 225
Wilson, Robert 196, 204, 226
WIMPs (Weakly Interacting Massive
Particles) 271
WMAP (Wilkinson Microwave
Anisotropy Probe) 224, 227, 282, 285
Wolf, Rudolf 103
Wollaston, William Hyde 112, 113
wormholes 220
Wright, Thomas 88
Wu, Emperor 28
Wulf, Theodor 140

XY


X-rays 111, 214 –17, 254
yellow dwarfs 127, 279, 295
yellow-white dwarfs 126–7
Yerkes Observatory (Wisconsin) 126
York, Donald 296
Yu Xi 22

Z


Zach, Franz Xaver von 97, 98
Zeeman, Pieter 129
Zeeman effect 129
Zhang Heng 23
zodiac 13
Zu Chongzhi 334
Zwicky, Fritz 140, 141, 145, 176, 178,
180–81, 236, 268, 270
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