KnowraOrbital spaceflightLinked fromLinked fromThe 9 pages that link to Orbital spaceflight, each with the reason it gives.All 9Broader topic 2Related 2Narrower topic 2Compared with 3Suborbital spaceflightCompared with: Unlike suborbital flight, it requires enough sideways speed to keep missing the body as it falls.Mercury-Redstone 3Compared with: Shepard’s flight reached space but did not achieve the orbital flight later flown by John Glenn.Kármán lineCompared with: Crossing the line alone does not provide the velocity needed to achieve orbit.