The undertaking of "soul research" would certainly mark the advancement of science. But advancement of science will not be able to find out the soul. It can simply be accepted on circumstantial understanding. You will find in the Vedic literature that the dimension of the soul is one ten-thousandth times smaller than the point. The material scientist cannot measure the length and breadth of a point. Therefore it is not possible for the material scientist to capture the soul. You can simply accept the soul's existence by taking it from authority. What the greatest scientists are finding we've explained long ago. As soon as one understands the existence of the soul, he can immediately understand the existence of God. The difference between God and the soul is that God is a very great soul and the living entity is a very small soul, but qualitatively they are equal. Therefore God is all-pervading and the living entity is localized. The nature and quality is the same.
The central question you say is "where is the soul and where does it come from?" That is not difficult to understand. We've already discussed how the soul is residing in the heart of the living entity and that it takes shelter after death in another body. Originally the soul comes from God. Just like a spark comes from fire, and when the spark falls down it appears to be extinguished. The spark soul originally comes from the spiritual world to the material world. In the material world he falls down into three different conditions which are called the modes of nature. Just like the spark of fire when it falls on dry grass and the fire quality continues. When the spark falls on the ground it cannot display its fiery manifestation unless the ground is favorably situated. Similarly when the spark falls on water it becomes extinguished. As such we find three kinds of living conditions. One is completely forgetful of his spiritual nature. One is almost forgetful but still there is an instinct of spiritual nature, and one is completely in search of spiritual perfection. There is a bona fide method for the achieving spiritual perfection by the spiritual spark soul and if he is properly guided then he is very easily sent back to home, back to Godhead where from originally he fell down.
It will be a great contribution to human society if this authorized information from the Vedic literature is presented to the modern world on the basis of modern scientific understanding. The fact is already there. It simply has to be presented for modern understanding. If you desire, I shall give you more information in this connection and you can present it in scientific words. If you so desire, you can publish this letter in the paper also.
Hoping to hear from you soon.