Yep!
A more satisfactory answer might be that it's an educated guess, based on the body of evidence we have about these trails and by simple observation. I don't know what they are, but they are not regular contrails. I would like to get soil and snow samples.
A more satisfactory answer might be that it's an educated guess, based on the body of evidence we have about these trails and by simple observation. I don't know what they are, but they are not regular contrails. I would like to get soil and snow samples.