Hints: wavelength spectrum Odyssey Mars gamma rays NASA the University of Tucson Boynton

One of these wavelengths corresponds to hydrogen, another wavelength would be iron. Another wavelength would be oxygen. And so you go to the part of the spectrum you are interested in and you see you've got a big peak there.
As Odyssey circled Mars, it started to pick up gamma rays. The strength of the signal indicated how much of any element it had found.
We were hopeful that we would see spots where water had been concentrated. We weren't sure we would see that. But it's these kind of things that we're expecting to see and actually very hopeful that we would see.
The data was radioed back from Odyssey to NASA to the University of Tucson, and finally to Boynton's desk.
Building up the picture takes a long time bacause any given spectrum that comes back is only 20 seconds worth of data. We get a new spectrum every 20 seconds, so we actually slowly build up an image in our database.
As the data came through, a picture started to build.
When I first saw the signal, I was looking through it and first trying to find the hydrogen signal. And then when I saw it, it was so big, I couldn't believe it. I actually had to do some checks to see could this be real, or somehow did we mess things up.

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