#FlashbackFriday #OnThisDay August 14,1958 - Groundbreaking for the 140 Foot Telescope in Green Bank, WV. (pictured here) Construction on the telescope was completed in February 1965. On May 23, 1965, first observations with the 140 Foot were made by Sebastian von Hoerner ... ⤵️

1 comments — live from bluesky

First observations with the 140 Foot were made by Hoerner, measuring occultations of radio sources by the moon at 234, 256 and 405 Mc. Said Hoerner, “First, when I saw the 140-ft. design, and especially when it got built, my impression was only: ‘What an odd fellow!’" 2/5 ⤵️ #Astronomy
"Why should we have an expensive polar mount, on top of a huge concrete building, with a large sail high up into the wind? ... But then I started using it, and it wasn't odd any more, but a wonderful tool." 3/5 ⤵️ #Astronomy #RadioAstronomy
"And when I worked to investigate and improve it, I developed a very personal relation with it, like many people do with their car, and the 140-ft. became a good friend and stayed that way.'' 4/5 ⤵️ #Astronomy #RadioAstronomy
The 140 Foot Telescope helped to launch the fledgling field of astrochemistry. Among its discoveries? In 1968, it found formaldehyde, the first complex molecule ever found in space! 5/5 #Astronomy #RadioAstronomy
Oh and btw ... 🗓️Countdown: 95 days til NRAO’s 70th anniversary! #NRAOat70 #NRAO70years 📡💙