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THE SCENE OF ACTION
SCIENCE AND MANS SELFIMAGE
ASTRONAUTICS AND THE DIMENSIONS OF SPACE
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_ I _ actually Andromeda Galaxy animal astronomers atomic clocks basic began billion carbon cell cell nucleus clock cloud comet composed cosmic cosmic dust developed diameter dipolar reversals discovered discovery distance dust dynamo theory earth earth’s atmosphere earth’s core earth’s crust earth’s magnetic ﬁeld earth’s rotation earth’s surface energy evolution exist fact ﬁnd ﬁndings ﬁrst ﬁts ﬂight ﬂow ﬂowers ﬂuctuations force genes geophysicists giant gravitational human hydrogen inﬂuence interstellar isotopes layers light light-years magnetosphere mass matter measure meteor miles per second Milky Way Galaxy moon mutations neutron star never ocean orbit organisms oxygen paleomagnetic particles phenomenon photograph planet produce radiation regions rock scientiﬁc scientists sidereal day simply solar plasma solar system solar wind spaceship species speed sphere spiral galaxies stars sun’s sun’s core sun’s surface tektites temperature tion universe various