Buuxi weedhan soo socota: Ka hor intii aan la gaarin 1920-yadii, waxaa si guud loo aaminsanaa in aysan jirin meerayaal kale oo aan ahayn meerkeena (eeg tusaale ahaan
Dooda wayn Sidaa daraadeed, cilmiga xiddigiska qarniyadii ka horeeyay, ma jirin kala duwanaansho u dhaxeeya xarunta mala awaalka ah ee galaxy iyo xarunta mala awaalka ah ee caalamka.