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Astrophysical History and Milestones

Astrophysics

A collection of complex questions regarding historical breakthroughs and verified events in astrophysics.

astronomy history physics science

8 Questions Hard Ages 18+ Aug 6, 2026

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About this Study Set

This study set covers Astrophysics through 8 practice questions. A collection of complex questions regarding historical breakthroughs and verified events in astrophysics. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

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Browse all 8 questions from the Astrophysical History and Milestones study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which astrophysicist first proposed the existence of the Chandrasekhar limit, establishing the maximum mass of a stable white dwarf star?

A Subrahmanyan Chandrasekhar
B Arthur Eddington
C Robert Oppenheimer
D George Gamow

2 In 1967, Jocelyn Bell Burnell discovered the first pulsar; what was the original whimsical designation given to the signal by her team?

A LGM-1
B X-Ray-B
C Nova-X
D Pulsar-Alpha

3 The Eddington experiment of 1919, which provided early evidence for General Relativity, measured the deflection of starlight during which specific event?

A A total solar eclipse
B A lunar occultation
C A planetary transit
D A supernova explosion

4 Who is credited with the 1929 observational confirmation that galaxies are receding from the Milky Way, establishing the expansion of the universe?

A Edwin Hubble
B Vesto Slipher
C Willem de Sitter
D George Lemaitre

5 What was the primary objective of the COBE satellite launched by NASA in 1989?

A To map the Cosmic Microwave Background radiation
B To detect gravitational waves
C To photograph the surface of Pluto
D To measure solar wind velocity

6 In 1933, Fritz Zwicky inferred the existence of what phenomenon while studying the Coma Cluster of galaxies?

A Dark matter
B Black holes
C Dark energy
D Neutron stars

7 What significant astrophysical event was recorded by Chinese astronomers in 1054 AD, later identified as the origin of the Crab Nebula?

A SN 1054 supernova
B The Great Comet
C A solar flare
D A planetary conjunction

8 Cecilia Payne-Gaposchkin's 1925 doctoral thesis fundamentally changed astrophysics by proving that stars are composed primarily of which elements?

A Hydrogen and Helium
B Oxygen and Carbon
C Iron and Nickel
D Silicon and Sulfur

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