The outer Oort cloud. (The inner Oort cloud is believed to be disk-shaped.)
It is called the Oort cloud
That's called the Oort cloud.
Comets.
Comets
Houston Comets ended in 2008.
Houston Comets was created in 1997.
Comets have been in space since the start of time. In the 1800's there were many people who knew comets where a space phenomena, there were people who thought it was a message from the gods. What people thought of the comets depended on their cultural beliefs.
Mercury has about the most perfectly spherical shape, but Saturn has the leastspherical shape (next least spherical is Jupiter).
The Oort Cloud of comets.
.... errr - well comets.
Earth is much more massive than asteroids and comets, and thefore has much stronger gravity, which pulls it into a spherical shape. Most asteroids and comets do not have strong enough gravity to do this.
snowballs
long period comet
short period comets
Comets are called this because of the ice and dust inside the nucleus. Now go look up everything else on your own.
Dirty snowballs
Its called FRICTION
They are called comets.
no, only comets develop glowing tails.Fun Fact:some scientists called comets "dirty snowballs"