A satellite is provided, configured for stacking with another similarly designed satellite and to facilitate separation thereof. The satellite comprises a housing for carrying functional components, having a plurality of pairing arrangements and a separation arrangement. Each of the pairing arrangements comprises a post extending perpendicularly to a horizontal plane of the housing, and first and second guide members. First guide members of the satellite are configured to couple with second guide members of the other satellite when stacked therewith. The separation arrangement comprises a thrust element configured to impart an ejection force to facilitate the separation, and a release assembly configured to selectively facilitate allowing the ejection force to propel one of the satellites, thereby initiating the separation. The first guide member of the satellite cooperates with the second guide member of the other satellite to deflect it from the horizontal plane during separation.