An user Spanish
says…

No
🚫
Adverb
  se
Pronoun
  conoce
Verb
  ningún
Determiner
  fenómeno
Noun
  natural
Adjective
  que
Pronoun
  pueda
Auxiliary
  producir
Verb
  este
Determiner
  efecto
Noun
.

There is no known natural phenomenon that can produce this effect.

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