The next few days were spent meandering in a round-about way
toward Santa Fe. The part of New Mexico we passed through was populated by very
small towns, or ghost towns, and was mostly open valleys with the occasional
small mountainous outcropping. The remoteness of the area is what makes it an
excellent location for the NRAO VLA (National Radio Astronomy Observatory, Very
Large Array), with dishes so sensitive they could pick up a cell phone call on
Jupiter. The VLA will be familiar if you’ve seen the Jodie Foster movie, Contact, or one of the many other films
made there.
We decided to indulge our nerdiness with a visit to the VLA,
to see just how big a very large array is. Turns out, it’s pretty big. There
are 4 different arrangements for the dishes, using the designations A, B, C,
and D. They sit on tracks so that they can move to be clustered tightly
together in the D formation, or spread out 22 miles across the valley, in the A
formation. According to the walking tour brochure, “each of the 27 antennas in
the array weighs over 230 tons, is 82 feet across, and over 90 feet high.” The information
from each individual dish in the array is merged to create the same effect as one enormously
powerful telescope.
There’s a self-guided tour around the grounds, and the
dishes moved several times while we were walking around. It’s a little surreal
to look along a line of antennas stretching into the distance, and watch them
tilt and rotate with one synchronized motion.

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