Agreed the big challenge will be to keep both arrays tuned to the same point
at the smae time. But just think with the baseline from here to the moon,
the size of the angular resolution will be well worth it!

I believe the NASA projects you are talking about is the TPF or Terrestrial
Planet Finder. Using interferometry we can see fainter objects in the sky:)
Not sure when its set to launch though.

They also have some other cool projects under way. There was one that I was
reading about in popular Science that measured gamma ray emissions.

Allen
"Martin 53N 1W" <ml_news@ddnospamddml1dd.co.uk.dd> wrote in message
news:coBad.84$zM.54@newsfe4-gui.ntli.net...

lin8080 wrote:
[...]

Your second thought to include the moon sound very interesting. So, is
their an offer to the nasa or the government to get some help? Please
excuse, when I ask so easy here. I mean a big radio telescope in a moon
crater will found many other scientist interest and today this is
makeable.

Easier would be to have a BIG "SKA" type array in space at the
Earth-Moon Lagrange point beyond the moon. No need to make a gentle
landing on the moon for all the parts! Also, any non-functional elements
can be simply allowed to drift out of the way and another brought in as
required.

Keeping that lot sychronised would be a good technical challenge (;-))

The various Lagrange points are going to get crowded...

Take a look at NASA's present list of new 'big' projects.

Have fun,
Martin

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