If the light is red, it indicates that the surface temperature of the star is between 2,000- and 5,000-degrees Kelvin. At this moment, the sun's light began to be mixed with red... This means that the surface temperature of the sun has dropped by at least 500 degrees.
This is undoubtedly a very major disaster for the earth. But fortunately, the earth has its own thermal insulation system, so it can't have much impact on humans for the time being. It is precisely because of this that human civilization has a rare buffer time.
"But in the continuous observation, we also found some places that make us wonder. The most important point is the brightness of Mars." This document reads.
"The brightness of Mars?" Alex had some doubts in his heart.
Alex also has a certain understanding of the rotation laws of several major planets in the solar system. Alex knows that Mars is on the other side of the sun at the moment, and because of this, from the earth, Mars rises and sets with the sun. During the day, Mars will be covered by the strong rays of the sun, so Mars is invisible most of the time, only visible in the early morning and dusk when the sun is dim.
"Mars is on the other side of the sun at the moment, so the Mars seen above the earth is the light reflected by Mars on the other side of the sun. According to the decrease in the luminosity of the sun we observe at the moment, the brightness of Mars should also decrease accordingly. Yes, but we didn't observe this change on Mars."
Alex knew very well what this phenomenon meant.
This means that...the sun has only changed its radiation intensity on the side facing the earth, while the side facing away from the earth still maintains a normal level of radiation. Because only in this way will the brightness of Mars not change.
"How is this possible?" Alex immediately thought of this sentence, "If this is the case, then we should have discovered this long ago. Not all the satellites we launch are on this side of the earth. "
Human civilization has launched many interstellar probes in recent decades. These probes have detected Mars, Venus, and even Jupiter, Saturn and other planets, and even detected comets and small planets. planetary. The most distant probes have even traveled beyond the heliosphere. As far as Alex knows, there are Eagle Falcon comet probes, Stardust probes, Messenger probes, etc. on the other side of the sun. So, if there is really no reduction in the radiation level on the back of the sun, the scientific research department should have received the signal long ago, rather than infer this from the luminosity change of Mars until this moment.
But Alex's question only lasted for a moment, and the next moment Alex wanted to understand this.
"Those detectors are not professional solar detectors. They can't make too detailed observations of such a bright star as the sun. In this case, it is understandable that they did not find changes in the luminosity of the sun."
Alex sorted out his thoughts and continued to read.
"After discovering this, we seized the time to operate a professional solar observation satellite to go to the other side of the sun to observe as soon as possible, and at the same time took the risk of damage to the probe, forcing some deep space probes to point the observation lens at the sun. Not enough precise data has been sent back, but we are at least 80% sure that this is true. Because the Love Space Telescope's observations of an asteroid on the back of the sun, numbered A7435D, also confirmed this. ."
"We don't know exactly what this means, but a rough inference is that some kind of physical reaction process that we don't understand is taking place above the sun's atmosphere, which is mainly suspected to be the photosphere, and it is this process that blocks the The path of the outward emission of photons originating from the interior of the sun. Further observations, modeling and calculations are underway."
This inference is very simple and crude, but it is also logical enough. In theory, if the sun's composition and mass have not changed, then its radiation levels shouldn't change either. But the fact is that its radiation level has changed, so this inference is enough to take into account the contradiction between the two aspects - it is not that the level of solar radiation has decreased, it is just that there is some kind of barrier in the solar atmosphere that blocks the radiation of the sun. .
"But how could this be?" Alex thought silently, "What kind of physical reaction can cause such a consequence, and if there is such a physical reaction process, how long will it last above the sun? "
"And what does this have to do with the blank piece of paper that Brad left me?"