Brad is dead?

The Human Alliance's supreme leader is the elderly man. The companions of the old man were also important members of the human alliance. Alex had a vague expectation that something big would happen when he first saw these people, but it all happened far too quickly. Alex has not, in fact, calmed down until now.

Brad was dead and committed suicide, but not before leaving himself a blank sheet of paper. In this meeting attended by the leaders of the various alliance states the top leaders are still pondering "what happened to the sun" at this time.

"I'm sorry, I'm sorry." Alex murmured a few times, slapped his head, then sat in the seat and closed his eyes for a few moments, digesting what he had just heard and felt. something, and I was finally able to relax.

"Could you please explain what's going on here? What went wrong?" Alex cleared his head and spoke to the Alliance leader.

Virat responded to the old man's gesture by saying: "Around three a.m., the solar observation telescope in the Western Hemisphere, the fifteen solar observation satellites in earth's orbit, and the Lagrangian point and coordinate system will all be launched. At the same time, a message was sent to the Ministry of Crisis Prevention from an observation satellite in orbit around the sun. The content of all messages was identical, namely that the intensity of solar radiation had dropped by 10% in just a few minutes and was still rapidly decreasing. The Crisis Prevention Department immediately informed the head of state's office and contacted Director Brad of your Institute of Stellar Physics after receiving this information. We The Internal Security Department joined the incident after learning that Director Brad could not be reached. We went straight to Director Brad's home."

"We forcibly opened the door of Director Brad's house after knocking and receiving no response. Then we learned that Director Brad had died, and we discovered fire traces at the scene, but it was strange; it didn't appear to be a fire. Director Brad's bedroom was the only place where the fire was contained. Brad, the director, was also severely injured. Director Brad died in the fire, according to the autopsy. The fire scene was a complete disaster. Only this safe has been kept in good condition, and we have reason to believe that Director Brad set it aside for you to deliver information."

"Before committing suicide, we double-checked that Director Brad had a normal schedule for a few days. Director Brad, who never drinks, invited you to a drink at the Century Building's top-floor restaurant last night, and we talked for at least an hour. We also concluded from looking through Director Brad's previous research records that he knew at least a year ago that the sun was about to change dramatically, but for some reason, Director Brad has not made these research findings public."

"There's one more thing, and that's the date of Director Brad's death. Director Brad died exactly an hour before the solar cataclysm, according to the autopsy."

"As a result, we can deduce that Director Brad was well aware of the impending solar eclipse and was also aware of the reason for it. He was dying and knew everything, but he didn't say anything. I previously spoke with you and handed you a blank piece of paper, as well as a note stating that you are capable of answering all of our questions... So, Alex, could you please explain what's going on?"

Virat's tone of voice has remained consistent throughout. However, Alex's mind was thrown into a tidal wave by these words. Alex's thoughts had almost come to a halt, but Virat's words continued to pierce his mind like bullets.

"No... impossible, how could solar radiation suddenly drop by 10%...no, that's not right...if solar radiation drops, it can't withstand its own enormous pressure, so it will shrink in size and increase its density to compensate. As a result, the core temperature rises again, raising the radiation level... This is a dynamic equilibrium process... This is basic logic "Alex muttered something.

Virat took a stack of documents and placed them in front of Alex after the old man made another gesture to him.

This diagram depicts changes in solar radiation levels, as well as preliminary observation data from various observation satellites and some preliminary analysis conclusions. Alex comes into contact with these things on a regular basis, so he has a good understanding of what's going on.

"The level of solar radiation has decreased, but the mass, volume, and density of the sun have not changed much," all of the detection equipment concludes.

"Do you have any idea what it means to reduce solar radiation by 10%?" Slowly, the old man said: "This means that the entire planet will experience the most severe ice age in recorded history, the equator will become a temperate zone, and the temperate zone will become the Frigid zone... Most of the earth will become uninhabitable, food production will be greatly reduced, and tens of millions to hundreds of millions of people will starve to death. The Antarctic ice sheet will even border South America, and the Greenland ice sheet will touch the Asian continent. If the level of solar radiation continues to fall, our civilization will crumble completely, though we will not necessarily devolve into primitive people."

"The level of solar radiation has decreased for the first time today. For the time being, we haven't noticed much change due to atmospheric circulation and the ocean's thermal insulation. At most, the temperature will drop a few degrees. However, if we are unable to increase solar radiation, If it stays the same, the temperature will gradually drop to the point where we can no longer bear it. So, Alex, tell me what you think we should do."

"I'm not sure, I'm not sure." Alex muttered something.

"Last night, what did Director Brad say to you? don't miss a single word and tell me what you both spoke about.