Is Rav Moshe Shternbuch Shlit"a Endorsing the Nibiru Craze?
See this video by Rabbi Daniel Travis (starting at the 7:15 mark until the end):
He seemed to say that the time was not yet ripe for him to discuss it. The Zohar quoted in the video starts here and is continued on the following page.
(hat tip: comment on Shirat Devorah)
See also this list of Shiurim by other rabbis which have mentioned it by Devash.
I'm not taking a stand on the subject, but I remain skeptical. Once great sages start discussing it, I may change my mind. We'll see what happens.
May we merit to see the Redemption with mercy.