Age of Cataclysm: I can light up the technology tree

【Technology + Disaster + Interstellar + Technology Tree】In 2050 AD, the sun is affected by an unknown influence, and a helium flash is about to erupt!Is the earth in danger?It doesn't matter, I will take action!The Three-Body Galaxy, the Proxima civilization is about to invade?It doesn't matter, I will take action!The dark universe, the disputes among advanced civilizations?It doesn't matter, I will take action!…Starting from controlled nuclear fusion, the protagonist Lv Yongchang opens the interstellar era of human civilization!Space shuttle, space elevator, energy weapon, antimatter preparation, grand unified theory, curvature navigation, two-dimensional fragments (two-dimensional foil)...Methane ocean, mysterious species!Liquid ammonia planet, flesh fusion!!Dimensional creatures, dimensionality reduction attack!!!What mysteries are worth exploring in the endless universe? !Disputes among advanced civilizations, how should human civilization deal with it? !