Neul Oort
Tha an Neul Oort neo Neul Öpik-Oort aig taobh a-muigh an Crios-Grèine. Creidear gur e an t-àite far an robh reultan earballach ann bho thùs. Tha an t-ainm a' tighinn as an reul-eòlaiche Òlaindeach Jan Hendrik Oort.

Ceangailtean a-mach (sa Bheurla) 
 Oort Cloud Profile by NASA's Solar System Exploration
 Representation, Southwest Research Institute
 The Kuiper Belt and The Oort Cloud
 The effect of perturbations by the Alpha Cen A/B system on the Oort Cloud

Reul-eòlas