Orbiting Radio Telescope

I recently read the book Contact by Carl Sagan (awesome read). In the book they mentioned that SETI research would be made much easier if we had an orbiting radio telescope in space. It has now been ~25 years since it was published. Have we sent a radio telescope into space during that time? If not, is there discussion of doing so in the future?

I recently read the book Contact by Carl Sagan (awesome read). In the book they mentioned that SETI research would be made much easier if we had an orbiting radio telescope in space. It has now been ~25 years since it was published. Have we sent a radio telescope into space during that time? If not, is there discussion of doing so in the future?

There are interesting possibilities for interferometry by multiple radio-telescopes in orbit: a baseline thousands of kilometres long could provide unprecedented resolution. (Not so interesting for SETI, perhaps.)

The joint ESA-NASA LISA project was to launch three laser interferometers like LIGO and VIRGO in space to detect gravitational waves. But NASA is backing out of it and ESA is evaluating a smaller project, because of cost.
Tullio
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I just found this article which talks about sending cargo into orbit and its price---->welt.de

Ein Start der Heavy Falcon soll zwischen 80 und 125 Millionen US-Dollar kosten.
Das bedeutet etwas weniger als 2000 US-Dollar (rund 1400 Euro) pro Kilogramm Ladung.

A Heavy Falcon rocket launch might cost something betweeen 80 and 125 million US dollar, which gives an average of less than 2K dollar/Kg (some 1.400 Euro)
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sounds cheap lets send a few million tons of cargo to start that space radio telescope... that should only cost $trillions
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Self replicating spaceships based on nanotechnology machinery, in theory a Galactica size spaceship could be built. Any thoughs on that

pretty much that. Each of your nanobots would have to have instructions to build the entire ship that seems to be a data heavy idea. Unless you could figure out how to compress data into a very small area a nanobot would be anything but nano.
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End terrorism by building a school

Interesting, so when Newton came up with the Newtonian law, or Eistein came up theory or relativity, are those crazy non sense, i think not. Sad when the human mind does not think outside the box.

Yes, but.

We will have to base our LIGO efforts in space. Too much vibration here on Earth. Plus we could achieve an enormously long base-line for the interferometer. I am confident that once we do this that we will find gravity "waves" which would be a rolling warpage of space-time.

Lets put orbiting radio telescopes around most planets in the Solar system, thus creatian a gargantuan readio telescope.

In terms of the "nanobots" idea, I think a more realistic concept may be based around a more plausible & achievable self-constructing solution.

Wow that's a lot of big words - where did they come from?...

Borg approach