The Sun Decays and I Start the Interstellar Era

Technology + disaster + interstellar In the year 2050 AD, an era of cataclysm, the sun was affected by unknown influences, accelerated its aging, and entered the red giant era ahead of schedule. Humanity was forced to survive underground! Just when humans were lucky enough to survive, a helium flash broke out and the earth completely melted! Lu Yongchang was reborn in the university physics class twenty years ago and obtained the technology tree system! Controllable nuclear fusion, sky plane, space elevator, energy weapons, anti-gravity technology, grand unified theory, curvature navigation technology, two-way foil preparation plan... Let's see how the protagonist leads mankind to avoid the crisis of genocide and step towards the stars and the sea! ! ! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.