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Home > All Images > 1997 > June > 19 Jun 1997

Images Dated 19th June 1997

Choose from 11 pictures in our Images Dated 19th June 1997 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


Upgraded Arecibo radio telescope with subreflector Featured 19 Jun 1997 Image

Upgraded Arecibo radio telescope with subreflector

Upgraded Arecibo radio observatory. Aerial fisheye lens view of the Arecibo radio telescope, with its gregorian subreflector system newly installed in 1997. This largest radio telescope in the world is situated in a natural crater in the mountains of Puerto Rico. The new subreflector system with two mirrors is housed in a 90-tonne dome receiver seen suspended 130 metres above the fixed dish. It can send and receive signals to examine planets and asteroids & also analyse Earth's upper atmosphere. To scan the sky the dome is steered above the 305m dish. The upgrade includes a 16m high buffer screen around the dish and a new radar transmitter that increases Arecibo's power by 20 times

© DAVID PARKER/SCIENCE PHOTO LIBRARY