Where did the “rain of blood” come from?

“Blood and Bloody Rain” in the Morning

  In the early morning of July 25, 2001, residents of a city in the southwestern state of Kerala, India, were awakened by a loud explosion. A few hours later, it began to rain, but the rain turned out to be red, like blood. Over the next two months, there were 124 red rains in 14 districts in Kerala, and people’s clothes, rivers, and even coastlines were dyed red by the rain. In the face of such “blood rain”, some people began to think that it was a harbinger of a catastrophe, and more residents worried that the river water used for domestic water would be polluted, which would affect their health. What happened to “Blood Rain”?
Red “Meteor Shower”

  The explosion was not like thunder, it was louder than thunder, shaking walls and windows, and it was not the season of thunderstorms. This is more likely caused by a high-speed meteor, because the red rain is concentrated in an elliptical region, which is similar to the dust distribution after comet fragments disintegrate in the atmosphere, and there are indeed some red objects in the solar system. . Perhaps a meteor entered the atmosphere and disintegrated, creating a mass of dust that drifted into the clouds and mixed with water vapor to form red rain. But when rainwater samples were tested, the speculation was disproved.

“Blood Rain” is real blood

  The researchers found many red, round cells in the rain samples, similar to red blood cells in blood. Obviously, the red rain is not caused by meteor dust, nor chemical pollution, sandstorms, or volcanic ash. Is “Blood Rain” really blood? There are many bats in India. Some people speculate that the meteor debris may have hit a group of migrating bats and splattered the sky with bat blood, but no bat corpses appeared when it rained, and red blood cells would die quickly in the rain. It is impossible to stay in the rain for two days. Still alive after a month.

Red Rain and Alien Life

  In further research, the researchers exposed the rainwater samples to various harsh environments such as high temperature, radiation, and high pressure, and found that the cells were still unaffected, while the cells of earth creatures are almost difficult to survive in such a harsh experimental environment. survive. Could it be the alien life it carries that makes the rain red? However, some scientists later pointed out that the operation method of the experiment was unreasonable. Some of the experimental reagents used in it would make microorganisms resistant to harsh environments. Therefore, this does not mean that the red rain is carrying extraterrestrial life.

rain from the ground

  The red rain samples were sent to the UK, where British scientists detected the genetic material and found that they were actually spores of a certain orange algae, which can grow into new algae under the right conditions. Areas with red rain do have large numbers of orange algae, which stop growing and produce large numbers of spores in harsh environments such as drought. Could it be that the spores swept away by the wind are scattered among the clouds and fall with the rain?
  This speculation is already the most reliable, but the rain in Kerala from June to September is abundant, which does not meet the conditions for the production of a large number of spores; in addition, if the spores are rolled into the clouds, then the red rain should be in the rainy season. The first rain appeared in the rainy season, and there were several normal rains in the local area before the red rain appeared; and it also rained normally during the red rain, and the land was wet in the rainy season, and even if there were spores, it would not flow continuously. into the clouds, causing two months of red rain. Others speculated that the spores were not local, but drifted from afar, but could not explain why the rainfall was concentrated in Kerala.
  Red Rain’s secret still doesn’t seem to be fully solved.

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