Radio telescope in the atacama desert under the starry skyRadio telescope in the Atacama desert under the starry sky
Four radio telescopes on the background of the galaxyFour radio telescopes on the background of the galaxy
It's time to replace the expander, this one has stretchedIt's time to replace the expander, this one has stretched
A stack of bound newspapers in an old radio receiverA stack of bound newspapers in an old radio receiver