Definition of "terrestrially" [terrestrially]

• In a terrestrial manner. (adverb)
• Whilst located on Earth, or on land. (adverb)

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• "Opportunities are missed to generate much spark between Tom and Louise, let along their terrestrially travelling friends."
• "NASA should focus on testing and developing terrestrially and extraterrestrially manufactured lightsails in order to begin exploiting the natural resources of asteroids and in order to transport humans through interplanetary"
• "From a gut feeling standpoint, I just can't see Mars being a viable near-term option (~10 years) given just the raw length of time it takes to get out there, and the little amount of experience we have in long-term terrestrially-based space exploration."