Jan Vorbrüggen stelde dit idée voor :
When they shut down
Aricebo, the Goldstone dish will be the largest remaining operational
radio telescope I know of that's at all steerable.
Effelsberg in Germany is larger (100 m vs 70 m dish diameter) and is used for
research exclusively.
But loosing Arecibo will really be a shame.
Jan
Don't forget the dish array at Westerbork, see
http://www.astron.nl/p/WSRT2.htm
André