Astronomer Part 2 Quiz

Isaac Newton explained how gravity governs the motion of planets and moons, connecting terrestrial and celestial mechanics.

Edmond Halley used historical comet observations and Newtonian physics to predict the comet’s return, demonstrating the power of applied astronomy.

Galileo Galilei first observed Saturn’s rings in 1610, though he did not fully understand their nature at the time.

Edwin Hubble’s observation that galaxies are receding from each other led to the concept of an expanding universe, a cornerstone of modern cosmology.

Jan Oort demonstrated that the Milky Way rotates, helping establish the structure of our galaxy.

Isaac Newton built the first practical reflecting telescope, reducing optical distortion seen in refracting telescopes.

Fritz Zwicky inferred the presence of unseen mass while studying galaxy clusters.

Johannes Hevelius published the first influential and detailed lunar atlas, Selenographia, in 1647, which established a model for lunar cartography.

William Herschel discovered infrared light by using a thermometer to measure heat beyond the visible red spectrum.

Edwin Hubble proved in 1924 that the Andromeda Nebula was actually a separate galaxy outside the Milky Way, expanding our understanding of the universe.