Who developed the three laws of planetary motion?
a) Galileo Galilei
b) Johannes Kepler
c) Isaac Newton
d) Nicolaus Copernicus
Answer: b) Johannes Kepler
Which astronomer is known for proposing the heliocentric model of the solar system?
a) Galileo Galilei
b) Nicolaus Copernicus
c) Johannes Kepler
d) Tycho Brahe
Answer: b) Nicolaus Copernicus
Who discovered Uranus as a planet?
a) Isaac Newton
b) Galileo Galilei
c) William Herschel
d) Johannes Kepler
Answer: c) William Herschel
Which astronomer is known for the discovery of the four largest moons of Jupiter?
a) Galileo Galilei
b) Nicolaus Copernicus
c) Johannes Kepler
d) William Herschel
Answer: a) Galileo Galilei
Who formulated the laws of motion and universal gravitation?
a) Galileo Galilei
b) Nicolaus Copernicus
c) Johannes Kepler
d) Isaac Newton
Answer: d) Isaac Newton
Which astronomer discovered the first evidence of the expansion of the universe?
a) Edwin Hubble
b) Carl Sagan
c) Albert Einstein
d) Henrietta Swan Leavitt
Answer: a) Edwin Hubble
Who proposed the theory of relativity?
a) Edwin Hubble
b) Carl Sagan
c) Albert Einstein
d) Henrietta Swan Leavitt
Answer: c) Albert Einstein
Which astronomer is known for her work on Cepheid variables and establishing the cosmic distance ladder?
a) Edwin Hubble
b) Carl Sagan
c) Henrietta Swan Leavitt
d) Albert Einstein
Answer: c) Henrietta Swan Leavitt
Who proposed the concept of black holes?
a) Edwin Hubble
b) Carl Sagan
c) Albert Einstein
d) John Michell
Answer: d) John Michell
Which astronomer is known for his contributions to the Big Bang theory?
a) Edwin Hubble
b) Carl Sagan
c) Albert Einstein
d) Georges Lemaître
Answer: d) Georges Lemaître
Who co-discovered the cosmic microwave background radiation, providing evidence for the Big Bang theory?
a) Arno Penzias
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Arno Penzias
Which astronomer is known for his work on the classification of stellar spectra?
a) Henrietta Swan Leavitt
b) Carl Sagan
c) Ejnar Hertzsprung
d) Edwin Hubble
Answer: c) Ejnar Hertzsprung
Who co-discovered the first exoplanet around a main-sequence star?
a) Michel Mayor
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Michel Mayor
Which astronomer is known for her pioneering work on dark matter in the universe?
a) Vera Rubin
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Vera Rubin
Who proposed the concept of neutron stars?
a) Jocelyn Bell Burnell
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Jocelyn Bell Burnell
Which astronomer is known for his discovery of the first pulsar?
a) Jocelyn Bell Burnell
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Jocelyn Bell Burnell
Who co-discovered the first image of a black hole using the Event Horizon Telescope?
a) Katherine Johnson
b) Carl Sagan
c) Albert Einstein
d) Katie Bouman
Answer: d) Katie Bouman
Which astronomer is known for her work on the calibration of the Hubble Space Telescope?
a) Nancy Grace Roman
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Nancy Grace Roman
Who proposed the concept of quasars?
a) Carl Sagan
b) Fred Hoyle
c) Albert Einstein
d) Edwin Hubble
Answer: b) Fred Hoyle
Which astronomer is known for her discovery of the first pulsating white dwarf star?
a) Cecilia Payne-Gaposchkin
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Cecilia Payne-Gaposchkin
Who co-discovered the first direct evidence of gravitational waves?
a) Barry C. Barish
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Barry C. Barish
Which astronomer is known for his work on the development of radio astronomy?
a) Karl Jansky
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Karl Jansky
Who co-discovered the cosmic microwave background radiation, providing further evidence for the Big Bang theory?
a) Robert Wilson
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Robert Wilson
Which astronomer is known for his work on the development of interferometry?
a) Albert Michelson
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Albert Michelson
Who co-discovered the first evidence of the expansion of the universe and the redshift-distance relationship?
a) Vesto Melvin Slipher
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Vesto Melvin Slipher
Which astronomer is known for her work on the interstellar medium and radio astronomy?
a) Jocelyn Bell Burnell
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Jocelyn Bell Burnell
Who co-discovered the first pulsar and received the Nobel Prize in Physics for the discovery?
a) Antony Hewish
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Antony Hewish
Which astronomer is known for his work on the study of comets and the Oort cloud?
a) Jan Oort
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Jan Oort
Who co-discovered the first image of a black hole using the Event Horizon Telescope?
a) Katherine Johnson
b) Carl Sagan
c) Albert Einstein
d) Katie Bouman
Answer: d) Katie Bouman
Which astronomer is known for his work on the calibration of the Hubble Space Telescope?
a) Nancy Grace Roman
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Nancy Grace Roman
Who proposed the concept of quasars?
a) Carl Sagan
b) Fred Hoyle
c) Albert Einstein
d) Edwin Hubble
Answer: b) Fred Hoyle
Which astronomer is known for her discovery of the first pulsating white dwarf star?
a) Cecilia Payne-Gaposchkin
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Cecilia Payne-Gaposchkin
Who co-discovered the first direct evidence of gravitational waves?
a) Barry C. Barish
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Barry C. Barish
Which astronomer is known for his work on the development of radio astronomy?
a) Karl Jansky
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Karl Jansky
Who co-discovered the cosmic microwave background radiation, providing further evidence for the Big Bang theory?
a) Robert Wilson
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Robert Wilson
Which astronomer is known for his work on the development of interferometry?
a) Albert Michelson
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Albert Michelson
Who co-discovered the first evidence of the expansion of the universe and the redshift-distance relationship?
a) Vesto Melvin Slipher
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Vesto Melvin Slipher
Which astronomer is known for her work on the interstellar medium and radio astronomy?
a) Jocelyn Bell Burnell
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Jocelyn Bell Burnell
Who co-discovered the first pulsar and received the Nobel Prize in Physics for the discovery?
a) Antony Hewish
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Antony Hewish
Which astronomer is known for his work on the study of comets and the Oort cloud?
a) Jan Oort
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Jan Oort
Who co-discovered the first image of a black hole using the Event Horizon Telescope?
a) Katherine Johnson
b) Carl Sagan
c) Albert Einstein
d) Katie Bouman
Answer: d) Katie Bouman
Which astronomer is known for his work on the calibration of the Hubble Space Telescope?
a) Nancy Grace Roman
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Nancy Grace Roman
Who proposed the concept of quasars?
a) Carl Sagan
b) Fred Hoyle
c) Albert Einstein
d) Edwin Hubble
Answer: b) Fred Hoyle
Which astronomer is known for her discovery of the first pulsating white dwarf star?
a) Cecilia Payne-Gaposchkin
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Cecilia Payne-Gaposchkin
Who co-discovered the first direct evidence of gravitational waves?
a) Barry C. Barish
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Barry C. Barish
Which astronomer is known for his work on the development of radio astronomy?
a) Karl Jansky
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Karl Jansky
Who co-discovered the cosmic microwave background radiation, providing further evidence for the Big Bang theory?
a) Robert Wilson
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Robert Wilson
Which astronomer is known for his work on the development of interferometry?
a) Albert Michelson
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Albert Michelson
Who co-discovered the first evidence of the expansion of the universe and the redshift-distance relationship?
a) Vesto Melvin Slipher
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Vesto Melvin Slipher
Which astronomer is known for her work on the interstellar medium and radio astronomy?
a) Jocelyn Bell Burnell
b) Carl Sagan
c) Albert Einstein
d) Edwin Hubble
Answer: a) Jocelyn Bell Burnell
