from regions of outer solar system known as the Kuiper belt and the Oort cloudoriginatefrom regions of outer solar system known as the Kuiper belt and the Oort cloud
from far outside of our solar systemoriginatefrom far outside of our solar system
from two regions in the Solar System , the Kuiper Belt and the Oort cloudoriginatefrom two regions in the Solar System , the Kuiper Belt and the Oort cloud
from two regions , the Kuiper Belt and the Oort cloudoriginatefrom two regions , the Kuiper Belt and the Oort cloud
from a region of space outside the solar system called the Oort Cloudoriginatefrom a region of space outside the solar system called the Oort Cloud
in the Kuiper Belt region or the Oort Cloudoriginatingin the Kuiper Belt region or the Oort Cloud
in the far - off Oort cloudoriginatingin the far - off Oort cloud
from the Oort Cloud gainoriginatefrom the Oort Cloud gain
in the Outer Oort Cloudoriginatein the Outer Oort Cloud
in the Inner Oort Cloudoriginatein the Inner Oort Cloud
in the Oort Cloud 1originatingin the Oort Cloud 1
from two locations in the outer solar systemoriginatefrom two locations in the outer solar system
as icy planetesimals in the outer Solar Systemoriginatedas icy planetesimals in the outer Solar System
from more distant realms in the outer solar systemoriginatefrom more distant realms in the outer solar system
in the deep freeze of the outer solar systemcreatedin the deep freeze of the outer solar system
in the deep Solar System such as the Kuiper Belt , Scattered Disc or Oort Cloudoriginatingin the deep Solar System such as the Kuiper Belt , Scattered Disc or Oort Cloud
on the outer fringes of the solar systemoriginateon the outer fringes of the solar system
as frozen chunks of gas and dust — planetary leftovers that have been sitting in a pair of outer - solar - system deep freezes known as the Oort cloud and the Kuiper beltoriginateas frozen chunks of gas and dust — planetary leftovers that have been sitting in a pair of outer - solar - system deep freezes known as the Oort cloud and the Kuiper belt
from the Oort Cloud , the area at the edge of our solar systemoriginatefrom the Oort Cloud , the area at the edge of our solar system
dust and ice , which are seen a couple times of year- the Persied and Leonid meteor showersdo contributedust and ice , which are seen a couple times of year- the Persied and Leonid meteor showers
periodic mass extinctions on Earthcauseperiodic mass extinctions on Earth
in a region known as the Oort cloudoriginatein a region known as the Oort cloud
from two celestial areas – Kuiper Belt and Oort Cloud – that surround the Solar Systemoriginatefrom two celestial areas – Kuiper Belt and Oort Cloud – that surround the Solar System
mostly of water ice with embedded dust particles , formed in the cold outer solar systemcomposedmostly of water ice with embedded dust particles , formed in the cold outer solar system
in a region of the solar system known as the Oort Cloudoriginatein a region of the solar system known as the Oort Cloud
as frozen pieces of gas and dust – planetary remnants that were in a pair of deep freezes in the solar system known as the Oort cloud and the Kuiper beltoriginateas frozen pieces of gas and dust – planetary remnants that were in a pair of deep freezes in the solar system known as the Oort cloud and the Kuiper belt