Sri Yukteswar - Kaivalya Darshanam

Sri Yukteswar explained the Yuga cycle of 24000 years around hundred years back, where he explained that our sun takes another sun as a dual and revolves around it forming a cycle of consciousness.

In the introduction of his book 'The Holy Science', Sri Yukteswar explains the basis of Yugas and corrects the general perception that the present age is Kali Yuga. He explains with examples that we have entered Dwapara Yuga and human consciousness is gradually ascending.

(This is the book that got Walter Cruttenden started researching binary star systems.)