76. In which book, Nicholas Copernicus, wrote that the Sun is the centre of Universe, that marked the beginning of modern astronomy?
De Revolution Orbium Coelestium
77. Who wrote ancient cosmological treatise Almagest?
Ptolemy
78. Which Greek astronomer of 150 BC compiled a catalogue of the position of more than 800 stars besides establishing a magnitude scale to measure star brightness, that is still in use?
Hipparchus
79. What is Big Bang Theory?
80. The science which deals with the nature and origin of the universe is known as?
Cosmology
81. Founder of Scientific Astronomy?
Hoffmann
82. A congregation of millions or billions of stars held together by gravity?
Galaxy
83. How many different kinds of galaxies are there?
84. Which American astronomer classified the galaxies into spiral elliptical and irregular types?
Edwin Hubble
85. Our galaxy milky way is a?
Spiral Galaxy
86. Which galaxy is called as the twin of our galaxy, the milky way?
M-31
87. Group of stars that form certain shapes or pattern are called?
Constellations
88. The pole star is a part of the ........ constellation?
Ursa Minor
89. Where is Lyra?
Lyra is a summer constellation.
90. The biggest constellation is?
Hydra
91. Which constellation is known as Hunter?
Orion
92. Father of modern space science?
Galileo Galilei
93. Oldest of all the constellations?
Leo
94. Which constellation is called by the name Milk- clipper?
Saggitarius
95. Where is Taurus?
Taurus extends from the celestial equator north to a little above 30° north declination.
96. The two nearest galaxies to our milky way?
Large Magellanic cloud and small Magellanic cloud
97. The galaxy nearer to our galaxy milky way?
Andromeda Galaxy
98. Milkyway belongs to a cluster of some 24 galaxies called?
Local group
99. Energy is transferred from the Sun to Earth mainly by?
electromagnetic waves
100. The best evidence that Earth spins on its axis is provided by?
apparent shifts in the swing of a Foucault pendulum