Halley's comet, by Kaiden

  Halley’s comet

                              Halley's comet is like a shooting star but bigger and rare 

Halley’s comet is made of ice, dust, and gas. When Halley's Comet orbits come close to the Sun, it has a bright and glowing appearance that can be seen from Earth. It is said that it was first noticed back in 240 BC. In 1705, an astronomer named Edmond Halley discovered that the comet appears every 75 to 76 years.Halley's Comet is arguably the most famous comet. It is a "periodic" comet and returns to Earth's vicinity about every 75 years, making it possible for a human to see it twice in his or her lifetime. The last time it was here was in 1986, and it is projected to return in 2061.

When was Halley's comet discovered?

1758 was when the Halley's comet was discovered.

Halley's projected lifetime could be as long as 10 million years.

WALT I am learning about space and the things around it.