The unique stellar alignment occurred yesterday which many Christians have linked to the Great Sign in Apocalypse 12. Many believe that this begins a period called Jacob's Trouble which is connected to the Heavenly sign of the Woman in Labour. This Woman is Our Lady as Mother of the Church and the Woman of Israel. Thus a period of trouble for the Church will begin.
Strangely enough an event did occur on the 23 September 2017 last Saturday and that was the release of the document by 60 ultra-traditionalist Catholic theologians of an accusation of heresy against the Pope. Thus this new Donatist movement that accuses the very foundation rock of the Church may begin a period of 7 years tribulation for our holy mother the Church. This indeed may herald a major schism in the Church in which eventually may bring to "birth" the Pope-son who will rule the nations with a rod of iron (measuring rod). This measuring rod is also mentioned in Apoc.11:1 and alludes to the number 36 and the living in the Divine Will. Thus this may be the Pope who lives in Divine Will who Luisa Piccarreta wrote about in her writings.
Others have suggested some kind of significant event occurring on Michaelmas (September 29) which this year is also Jewish Yom Kippor. Others also expect something significant occurring on October 13 2017 on the 100th anniversary of the Miracle of the Sun at Fatima. I personally believe that we have entered into a 7 year period of greater tribulations for the Church and Israel in which Our Lady will play a central role. This will include political turmoil and natural disasters getting even worse than the previous 7 years. The good news is that these tribulations will usher in a period of worldwide peace for many years and a new springtime for the Church and the Jewish people.