To determine which detail is emphasized in the video compared to the article, you would generally need to watch the video for specific information. However, based on typical content found in articles and videos discussing NASA's Double Asteroid Redirection Test (DART), it's possible to make an educated guess.
A. The contributions of research universities to DART – While this can be mentioned, it may not be the primary focus in a broader overview.
B. The amount of time DART took to become a reality – This could be highlighted in both formats but might not stand out significantly in a video meant for a general audience.
C. The current threat of asteroids to Earth – Videos often emphasize the potential risks and threats to engage the audience, making this a likely focal point.
D. The size and distance of the Didymos system – While factual, this detail might not be the primary emphasis in a video.
Given these points, C. the current threat of asteroids to Earth is likely the detail that the video emphasizes compared to the article.