Question

4) How would scientists know that an asteroid is about to collide with Earth?​

Answer 1

Explanation:

We cannot prevent an asteroid from hitting the Earth, if we do not know about its existence. Astronomers use ground-space-based telescopes to detect celestial bodies that could pose a threat of impact. In addition, infrared imaging tools help find objects that are too dark to see through the reflected lights

Answer 2

Explanation:

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Detecting the Asteroid

Detecting the Asteroid Astronomers use ground-space-based telescopes to detect celestial bodies that could pose a threat of impact. In addition, infrared imaging tools help find objects that are too dark to see through the reflected lights.