Chicago Tonight

How Satellites Can Detect and Protect Earth From Asteroids

Clip: 09/10/2019 | 6m 17s Video has closed captioning.

Adler Planetarium astronomer Mark Hammergren explains how a space-based sentry can help detect asteroids that will pass near Earth.

Aired: 09/10/19

Rating: NR

Problems Playing Video? | Closed Captioning

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