Editor’s note: This letter is the second of two letters in response to a man who questioned the Rebbe’s position that the sun revolves around the earth and not vice-versa. For the Rebbe’s first letter, see here. For the man’s original letter, see here.

By the Grace of G‑d
Rosh Chodesh Kislev, 5736
[November 5, 1975]
Brooklyn, N.Y.

Greeting and Blessing:

In reply to your question relating to the matter of the motion of the sun and the earth, whether the sun revolves around the earth or the earth around the sun.

It is my firm belief that the sun revolves around the earth, as I have also declared publicly on various occasions and in discussion with professors specializing in this field of science.

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In view of the above, I have no objection, of course, if you wish to make this view known to whomever you choose, since, as mentioned, I have declared it orally and in writing to correspondents who had inquired into this subject, on more than one occasion.

With esteem and blessing,

P.S. On several of the above-mentioned occasions, when I spoke on the subject publicly, I gave a clear and detailed explanation why this view is in no conflict at all with contemporary science. I emphasized, however, that I was speaking of modern and contemporary science, as it differs from Ptolemaic and medieval science when conflicting views were held on this subject. Modern science, on the other hand, having rejected both systems, has reached conclusions which present no problem to one holding to the belief that the sun revolves around the earth, as I have explained at some length elsewhere.