Assertion: powered aircraft | /r/HasProperty | launched into sub-orbital spaceflight
Facets:
value: from an airborne carrier aircraft
type: OTHER
value: before rocketing beyond the kármán line
type: TEMPORAL
value: horizontally
type: MANNER
Source sentences:
text: At least three suborbital rocket-powered aircraft have been launched horizontally into sub-orbital spaceflight from an airborne carrier aircraft before rocketing beyond the Kármán line: the X-15, SpaceShipOne, and SpaceShipTwo.