Are aliens exist??
if yes than how
and if no than also how??
please with reason
Answers
Answer:
In 2002, Russian astrobiologists claimed that super-hardy Deinococcus radiodurans evolved on Mars. The microbe can survive several thousand times the radiation dose that would kill a human.
In 2002, Russian astrobiologists claimed that super-hardy Deinococcus radiodurans evolved on Mars. The microbe can survive several thousand times the radiation dose that would kill a human.The Russians zapped a population of the bacteria with enough radiation to kill 99.9%, allowed the survivors to repopulate, before repeating the cycle. After 44 rounds it took 50 times the original dose of radiation. They calculated that it would take many thousands of these cycles to make common microbe E.coli as resilient as Deinococcus. And on Earth it takes between a million and 100 million years to encounter each dose of radiation. Therefore, there just has not been enough time in life’s 3.8 billion year history on Earth for such resistance to having evolved, they claim.
In 2002, Russian astrobiologists claimed that super-hardy Deinococcus radiodurans evolved on Mars. The microbe can survive several thousand times the radiation dose that would kill a human.The Russians zapped a population of the bacteria with enough radiation to kill 99.9%, allowed the survivors to repopulate, before repeating the cycle. After 44 rounds it took 50 times the original dose of radiation. They calculated that it would take many thousands of these cycles to make common microbe E.coli as resilient as Deinococcus. And on Earth it takes between a million and 100 million years to encounter each dose of radiation. Therefore, there just has not been enough time in life’s 3.8 billion year history on Earth for such resistance to having evolved, they claim.By contrast, the surface of Mars, unprotected by a dense atmosphere, is bombarded with so much radiation that the bugs could receive the same dose in just a few hundred thousand years. The researchers argue that Deinococcus’s ancestors were flung off of Mars by an asteroid and fell to Earth on meteorites. Other experts remain sceptical.
Honestly we don't really know. When peeps go to the moon they have some photos where there are shadows that look like a lifeform but nobody has seen an alien.
Honestly in my opinion I think aliens are a joke like unicorns.