Astronomers have warned of the sun entering a "catastrophic hibernation" period, which leads to its blocking and entering the lower stage of solar energy, which may cause freezing weather and earthquakes.
Experts believe that we are on the verge of entering the deepest period of "recorded" sunlight ever recorded, with the sunspot virtually gone, according to the British newspaper "The Sun".
"The minimum amount of solar energy actually happened, which is deep. The sun's magnetic field has become weak, allowing additional cosmic rays in the solar system," said astronomer Tony Phillips.
"Excess cosmic rays pose a threat to the health of astronauts and travelers in the polar air, and affect electrochemistry in the upper atmosphere of the Earth, and may help cause lightning."
NASA scientists fear it will be a recurrence of the "Delton Minimum" phenomenon, which occurred between 1790 and 1830, which led to periods of severe cold, loss of crops and famine, and powerful volcanic eruptions.
Temperatures decreased by up to 2 ° C over 20 years, which destroyed the world's food production.
On April 10, 1815, the second largest volcanic eruption occurred in 2000 years on Mount Tambora, Indonesia, killing at least 71,000 people, and also leading to what is called a year without summer in 1816, when snow fell in July.
So far this year, the sun has been "empty" with no sunspot 76 percent of the time, a rate that was only exceeded once in the space age last year, when it was 77 percent blank.
A previous study revealed that the sun, although it is the most important source of energy for life on Earth, is "slightly sleepy" compared to other stars in the universe.
Astronomers from the Max Planck Institute in Germany compared the sun to hundreds of similar stars, using data from NASA's Kepler Space Telescope, and researchers chose stars with a similar surface temperature, age and spin to the Sun in the Milky Way.
The results showed that the sun is very weak compared to most other stars about 5 times.
"We were very surprised that most sunlike stars are much more active than the sun," said Alexander Shapiro of the Max Planck Institute.
The researchers say it is not clear whether the sun has been "going through a quiet period" for 9,000 years or is it less bright than other similar stars.