Scientist

Question 1

Proposed Geocentric model

Answer 1

Eudoxus

Question 2

Showed earth centered universe

Answer 2

Ptolemy

Question 3

Heliocentric theory

Answer 3

Nicolaus Copernicus

Question 4

Law of planetary Motion

Answer 4

Johannes Kepler

Question 5

First observatory and card catalog

Answer 5

Tycho Brahe

Question 6

Law of universal gravitation

Answer 6

Sir Isaac Newton

Question 7

Used telescope to observe sky

Answer 7

Galileo Galilei

Question 8

Theory of relativity

Answer 8

Albert Einstein

Question 9

Suggested that celestial objects were formed from nebula

Answer 9

Immanuel Kant

Question 10

Strengthened the nebular hypothesis

Answer 10

Pierre Simon Marquis de Laplace

Question 11

Small solid body revolves around the gaseous molecule called Planetesimal theory

Answer 11

Forest Ray Moulton & T.C. Chamberlin

Question 12

Sun as surviving star

Answer 12

R.A Lyttleton

Question 13

Thory of dust-cloud

Answer 13

Fred. L.Whipple

Question 14

Demonstrated galaxie using 100-inch reflecting telescope

Answer 14

Edwin Hubble

Question 15

Discovered the first quasar

Answer 15

Maarten Schmidt

Question 16

Theory of Dust-cloud

Answer 16

Fred L. Whipple

Question 17

Demonstrated existence of galaxie using his 100 inch reflecting telescope

Answer 17

Edwin Hubble

Question 19

Discovered Pulsars

Answer 19

Jocelyn Bell