Arecibo Observatory in Puerto Rico

Arecibo Observatory in Puerto Rico
Arecibo Observatory in Puerto Rico
On the left is an image acquired in staring spotlight mode by the TerraSAR-X satellite on 4 October 2016, when the Arecibo Observatory reflector was still intact, and the telescope remained operational. The image on the right was acquired on 21 March 2023. It is clearly visible that a large part of the reflector has collapsed, revealing Earth's surface below.