jan Ma Opa (toki Inli: Mark Rober) li jan pi lipu Jutu li jan pi sona ilo li jan pi pana sona tan ma Mewika. tenpo pini la ona li jan ilo pi kulupu NASA lon sike suno luka tu tu. sike suno nanpa 1980 la jan Ma Opa li kama lon lon ma Kaliponja.