Question

NASA Planetary Defense Demo Collide with Asteroid
by Justyna Surowiec  

The Double Asteroid Redirection Test (DART) – NASA’s first mission to demonstrate a planetary defense technique – will get one chance to hit its target, the small moonlet in the binary asteroid system Didymos. The asteroid poses no threat to Earth and is an ideal test target: measuring the change in how the smaller asteroid orbits about the larger asteroid in a binary system is much easier than observing the change in a single asteroid's orbit around the Sun. Work is ramping up at the Johns Hopkins Applied Physics Laboratory in Laurel, Maryland, and other locations across the country, as the mission heads toward its summer 2021 launch – and attempts to pull off a feat so far seen only in science fiction films.  

Unit Test Question
Use the passage from “NASA’s First Planetary Defense Technology Demonstration to Collide with Asteroid in 2022” and the video Behind the Spacecraft: NASA’s DART, The Double Asteroid Redirection Test to answer the question.

Why might the video introduction be more engaging for audiences than the article?

Responses
It uses an educational tone to make an emotional appeal.

It explains the meaning of the DART acronym.

It uses vibrant language and voice-overs.

It downplays the immediate threat of asteroids.

Answer 1

It uses vibrant language and voice-overs.

The video’s audio-visual elements and lively narration make the content more immediate and engaging than a written article.