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1
|
asteroid
|
US
|
Asteroids are closely monitored by space agencies for potential impact on Earth and for potential mining opportunities.
|
1
|
|
2
|
asteroid
|
US
|
Asteroids are studied and monitored for potential impact on Earth.
|
1
|
|
3
|
asteroid
|
US
|
Astronomical interest and research in tracking and potentially mitigating asteroid impacts on Earth.
|
1
|
|
4
|
asteroids
|
US
|
Astronomical topic of interest due to potential impact on Earth and space exploration
|
1
|
|
5
|
asteroids
|
United States
|
Asteroids are a significant concern due to the potential impact on Earth and are the subject of scientific study and potential defense strategies.
|
1
|
|
6
|
asteroids
|
United States
|
Asteroids are often the subject of scientific research and space exploration, as they are seen as potential threats to Earth.
|
1
|
|
7
|
de havilland comet
|
US
|
Less recognized compared to Boeing and Airbus jetliners due to limited service in the US market.
|
1
|