10000 years
Approximately every 76 years 1986 + 76 = 2062
Halleys comet comes back around every 76 years.
Probably because they were uninformed. Science has come a long way since then and we know Haleys Comet will probably never collide with Earth and end all life.
It takes roughly 75 years for Halley's comet to come by the earth. All comets orbit the sun, but they do not all originate from the same place, which accounts for their paths and how long their individual orbit takes.
Halley's Comet was first recorded in 240 BC by Chinese astronomers. However, it was Sir Edmund Halley who calculated its periodicity in 1705, predicting its return in 1758. The comet was then named after him.
Cat didn't "come to Earth". They evolved here about 25 million years ago.
According to Hindu mythology, Lord Ram is believed to have come to earth around 1.2 million years ago.
It takes 75 years
76 years
IN BILLIONS AND BILLIONS OF YEARS
380 millon years ago
Billions of years from now, the sun will get really hot, and expand and vaporize the Earth. Yes, the Earth will come to end, Billions of years from now.