Arecibo telescope collapsed today I was surprised when I saw | Engineering Addict

Arecibo telescope collapsed today

I was surprised when I saw how detailed are the radar images of asteroids the Arecibo were able to produce.

If you're surprised, too, let's learn a bit more about radio astronomy. The attached video is 10 years old but contains zero bullshit (yet an off-screen coughing guy is somewhat annoying).

Have fun watching.

Extracted from here.