"NASA’s First Planetary Defense Technology Demonstration to Collide with Asteroid in 2022"

Question

by Justyna Surowiec

Structure is essential to the equation; in Didymos, researchers aren’t sure whether DART will impact an asteroid composed of solid rock, loose rubble or something “softer,” more akin to sand. A softer surface would absorb more of DART’s force and may not be pushed as drastically as if DART hit a harder surface.

Extensive modeling and simulation, part of a large international campaign that started in 2014, is being done in conjunction with Lawrence Livermore National Laboratory and other members of the investigation team to help researchers predict what will happen to DART’s target after impact. They’ve considered these various factors—along with the added momentum from DART’s impact and the resulting debris ejected from the crater it creates – as they’ve run various simulations. These simulations help the team shape its expectations for impact.

NASA’s First Planetary Defense Technology Demonstration to Collide with Asteroid in 2022, NASA, May 6, 2019

Question
Use the passage from “NASA’s First Planetary Defense Technology Demonstration to Collide with Asteroid in 2022” and the video to answer the question.

Behind the Spacecraft: NASA’s DART, The Double Asteroid Redirection Test

Compared to the video, what is a limitation of the article?

(1 point)
Responses

It lacks discussion of the potential outcomes of DART.
It lacks discussion of the potential outcomes of DART.

It lacks explanation of the parties involved in testing DART.
It lacks explanation of the parties involved in testing DART.

It lacks visuals that show the DART simulations.
It lacks visuals that show the DART simulations.

It lacks technical language to adequately describe DART.
It lacks technical language to adequately describe DART.

Answer 1

Based on the options provided and considering the content of the article, the most appropriate limitation of the article compared to the video is:

It lacks visuals that show the DART simulations.

This option highlights the absence of visual aids such as diagrams or animations that could enhance understanding, which is typically present in video formats but not in written articles. The other options either misrepresent the content of the article or do not accurately reflect the comparative nature of the limitations regarding the video.