1

In a hundred billiongalaxiesyou will notfind another.In a hundred billion galaxies, you will not find another.

galaxy

2

The cosmosis within us.We are madeof star-stuff.The cosmos is within us. We are made of star-stuff.

cosmos

3

We area wayfor the universeto know itself.We are a way for the universe to know itself.

universe

4

Mankind was bornon Earth.It was never meantto die here.Mankind was born on Earth. It was never meant to die here.

interstellar

5

Earth isthe most wonderfulof allcelestial bodies.Earth is the most wonderful of all celestial bodies.

terrestrial

6

Celestial bodiesshould be freefor explorationand use.Celestial bodies should be free for exploration and use.

celestial

7

Astronomy showshow smallis man's body,how great his mind.Astronomy shows how small is man's body, how great his mind.

astronomy

8

When beggars die,there areno comets seen.When beggars die, there are no comets seen.

astrology

9

One small stepfor man,one giant leapfor mankind.One small step for man, one giant leap for mankind.

astronaut

10

I came inwith Halley's cometand expectto go out with it.I came in with Halley's comet and expect to go out with it.

comet

11

Meteoritesare fragmentsfrom spacethat survive impact.Meteorites are fragments from space that survive impact.

meteorite

12

This isby farthe oldest craterever found.This is by far the oldest crater ever found.

crater

13

We are madeofstellar dustand starlight.We are made of stellar dust and starlight.

dust

14

We are madeofstellar ash.We are made of stellar ash.

ash

15

The probe enteredthe Sun'souter envelope.The probe entered the Sun's outer envelope.

envelope

16

A massive chunkof rockbroke off.A massive chunk of rock broke off.

chunk

17

Look againat that dot.That's here.That's home.Look again at that dot. That's here. That's home.

spacecraft

18

There will step forthmento sailthese ships.There will step forth men to sail these ships.

spaceship

19

The probeflew throughthe Sun'scorona.The probe flew through the Sun's corona.

probe

20

The Eaglehas landed.The Eagle has landed.

module

21

Rockets arecool.There's nogetting around that.Rockets are cool. There's no getting around that.

propulsion

22

Space hasno air pressure.Space has no air pressure.

pressure

23

We studythe dynamicsof celestial bodies.We study the dynamics of celestial bodies.

dynamics

24

Compose the historyofcelestial motions.Compose the history of celestial motions.

motion

25

Gas escapesthroughthe vent.Gas escapes through the vent.

vent

26

The comet's tailstretchedacross the sky.The comet's tail stretched across the sky.

tail

27

Planets followcurved pathsaround stars.Planets follow curved paths around stars.

curve

28

Exploration isthe essenceofthe human spirit.Exploration is the essence of the human spirit.

exploration

29

We chooseto goto the moon.We choose to go to the moon.

expedition

30

Voyager completeda historic flybyof Neptune.Voyager completed a historic flyby of Neptune.

flyby

31

observatory

32

telescope

33

spectacle

34

orbit

35

ecliptic

36

diameter

37

radius

38

substance

39

composition

40

compound

41

fossil

42

sample

43

specimen

44

particle

45

molecule

46

atom

47

ion

48

electron

49

quantum

50

liquid

51

fluid

52

solid

53

synthesise

54

formation

55

method

56

spectrum

57

dimension

58

frequency

59

signal

60

antenna

61

circuit

62

refraction

63

ultraviolet

64

radioactive

65

distinct

66

discernible

67

invisible

68

collision

69

squash

70

fragment

71

cataclysmic

72

overwhelming

73

despair

74

desperate

75

hopeless

FlowType.AI

Chapter 4: Space Exploration

Space Exploration

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