Some scientists, notably Sir Fred Hoyle, believed that comets were a substantial source of water for the Earth. It's even possible that life itself came from space as microscopic spores or bacteria.
Early Man first noticed comets. Comets were around long before humans.
An omen
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Comets shine because the materials in them (ice, rocks, metals) reflect the light from the sun. Comets do not produce their own light so we, humans, are only seeing reflected sunlight.
Scientists believe early modern humans originated in Africa. This theory is supported by fossil and genetic evidence that suggests humans evolved in Africa before migrating to other continents.
AnswerThis can be answered from the perspective of belief. If you believe that God created heaven and earth, then man could not have been here before that time. But if you believe that God created heaven and earth just a few thousand years ago, then most certainly humans were here long before then. So, it is a matter of what you wish to believe.
Humans have never been to Jupiter, so humans have not pooped on it. Now, if you believe in aliens, that's a whole different story...
Anthropologists believe that all humans originated in Africa, specifically in the region of East Africa. This idea is supported by genetic and fossil evidence that suggests modern humans first evolved in this region before spreading out to populate the rest of the world.
It doesn't. HIV appears in quite a few primates, including the African Green Monkey, where we believe it originated before jumping species to humans.
Yes, only humans believe in superstitions and you have to believe to be affected.
Archaeologists believe that the first humans originated in Africa, specifically in the region of east Africa. Fossils and genetic studies support the theory that modern humans, Homo sapiens, evolved in Africa before spreading to the rest of the world.
The prehistoric era was before humans.