[LMB] OT: Arecibo

[Howard Brazee]

> On Nov 22, 2020, at 1:24 PM, Markus Baur via Lois-Bujold <lois-bujold at lists.herald.co.uk> wrote:
> 
>> Normal radio telescopes just listen.   Radar  is when signals come from Arecibo and bounce off of whatever it is looking at, and come back.
> 
> which is why it is useful only for short range targets like asteroids or planets

I tried to take a photo of the Andromeda galaxy, but there was something wrong with my flash.