Shower thoughts:
Wisp opens a portal to the sun.
Plasma shoots out.
The sun loses mass and gets thinner by the minute.
Eventually, the sun is no more and the entire system is plunged into darkness and cold.
Every rock, asteroid and planet shoots out from the system.
The Corpus and Grineer become fragmented; the Ostrons eventually die.
This was Wisp's plan all along.