when we die
We expect Halley's Comet in 2061.
in 2016 .
About every 76 years, for a few weeks on each return.
Every 75-76 years. It last appeared in view on February 9th 1986 and will not be visible again until July 28th 2061
2061
The Moon is bigger. It has a diameter of 2,159 miles (3,476 kilometers), which is about four times smaller than the diameter of Earth. Halley's Comet nucleus (the solid bit) is estimated to be approximately 5 miles by 9 miles.
Comets are the celestial bodies that appear in the sky at regular but long intervals and have a tail. This tail forms as a comet gets closer to the sun, causing ice and dust to vaporize and stream away from the comet, creating a bright extended tail.
Halley's comet appears because it is a comet that orbits the Sun. It as a highly elliptical (oval) orbit which makes it seem to fly out of the solar system and back.
Beacause it completes its orbit in 76 years.
every 76 years
About once every 76 years.
Yes.