The universe and the solar system - part 2

The video explains the Crossing Star Theory by Chamberlain and Maltin, which suggests that the solar system originated from a large star, the sun. Another massive star approached, causing an expansion and explosion of part of the sun, forming a gaseous line. This line condensed and cooled, eventually forming the planets.

What happened to the part of the sun that faced the approaching star?

Describe the process that led to the formation of planets according to the theory.