Read the excerpt from Chapter Two of Windows to the Universe: Revolutions in Astronomy.In 1656, Dutch scientist Christiaan Huygens built a telescope that was 23 feet long and could magnify objects 100 times. Using this telescope, Huygens was able to observe and describe the Orion Nebula in detail.
Answer
A
The refinement of telescopes was pivotal in transforming humanity's understanding of the universe.
B
The utilization of lenses and mirrors paved the way for more precise and powerful telescopes.
C
Pulleys and masts were constructed when telescopes became larger and more difficult to operate.
D
Larger telescopes allowed scientists to challenge geocentric views of the universe.
Explanation
The excerpt highlights Huygens’s long, powerful telescope and explains that it let him observe the Orion Nebula in detail. This shows how improvements to telescopes expanded what people could see and learn about the universe. Choice A, “The refinement of telescopes was pivotal in transforming humanity's understanding of the universe,” best captures that idea; the excerpt does not mention lenses, mirrors, pulleys, or challenging geocentrism.
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