Look at the timeline excerpt from Chapter Four of Windows to the Universe: Revolutions in Astronomy.1989: The first conference to discuss a space-based infrared telescope is held.1996: A committee of 18 members is selected to review designs.2002: Teams are selected to build components, and the telescope is named after former NASA administrator James Webb.(Several more events listed with just the year)December 25, 2021: JWST is launched.January 24, 2022: JWST reaches Lagrange Point 2.July 12, 2022: The first images from JWST are released to the public.What is the effect of including specific months and days for the last three events in the timeline, while the earlier events only include years?
Answer
A
It highlights delays in the telescope’s construction and testing.
B
It provides exact dates to compare JWST with other missions.
C
It emphasizes the precise timing of JWST’s most critical milestones.
D
It shows that the telescope’s early development was less important than its launch.
Explanation
The final three events are major milestones: JWST’s launch, its arrival at Lagrange Point 2, and the release of its first images. Giving their exact months and days emphasizes precisely when these important events happened, unlike the earlier events, which are dated only by year. The timeline does not give information about delays or compare JWST with other missions.
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