Unknown Object Passing the Moon in Daytime | Lunar Transit Explained

What Was That Dark Object Near the Moon?

Object Oriented VS Object Relational Database - Object Based Databases - Database Management System

Object Oriented Databases (Prose & Cons) | Relational Vs. Object Oriented

Databases: Object oriented or relational?

Hoag's Object is a rare, nearly perfectly symmetrical ring galaxy located about 600,000,000 light-years from Earth, discovered by astronomer Arthur Hoag. Its diameter is estimated at about 120,000 light-years, with this measurement referring primarily to the stellar ring itself rather than the “empty” space within it. The ring is composed mainly of young blue stars with active star formation, while the central region appears almost empty and contains only a very sparse population of older stars.