Comets have been described as being like big dirty snowballs. So has the dwarf planet Pluto.
metor
A big ball of dirty ice and snow in outer space is called a comet. Comets are made up of rock, dust, water ice, and frozen gases, which form a bright coma or "tail" when heated by the Sun's radiation as the comet approaches it.
a comet
It is usually comets that are reffered to as `large dirty snowballs, they contain mostly ice, but also some rock. They usually originate from the Kuiper belt or Oort cloud.
A Comet
A large mass of dirty ice and snow could be a glacier. Glaciers are made up of accumulated snowfall that compresses into ice over time. The dirt and debris in glaciers come from rocks and sediment picked up as the glacier moves and erodes the landscape.
a gazillion foot wide ball
to climb up snow mountain
it is a big ball
Big Dirty Band was created in 2006.
Big Dirty Band ended in 2006.
The Big Snow was created in 1948.