Alright I had time to play your game. I will start with the things that can enhance your project then finish with what I really liked.
At the start of the game: The rapid clicking of the sun felt annoying, though as the game progressed I quickly stopped clicking the sun.
In the middle of the game: I do not want to increase lifetime because the generation speed and energy cost are the real pushing forces.
In the end of the game: The 1,000,000 cap is one single asteroid so you are no longer clicking anything because the first asteroid will hit and you still get 1,000,000 cap. Since there is no gain for asteroid clicks or varying asteroids that make wanting to live longer helpful. The costs go beyond the 1,000,000 cap and this create an artificial cap and reduces enjoyment of the game.
In the secret ending there may be a typo: Secrest maybe meant to say Secret ending. The pop up frog animation was kind of funny.
What I liked about the game: The game was engaging, I played all the way to the end. The exponential upgrade loop felt great until we hit the cap. The MS Paint Spray paint sun was cool. I think you did pretty good but there is most certainly room for improvements.