how how dose space dust differ to the dust we have on earth

Question: how how dose space dust differ to the dust we have on earth
- Keywords:
  dust,
  earth,
  space
Asked by georgemaryke to Ezzy on 14 Mar 2012.
- Elizabeth Pearson answered on 14 Mar 2012:
  
  It’s a lot smaller for one thing. When we talk about cosmic dust we actually mean everything out there in space that’s not Hydrogen or helium, and most of the clouds of dust we see are tiny lumps of carbon and silicon compounds that could one day clump together to form a planet.

Question: how how dose space dust differ to the dust we have on earth