--- title: "Thelma Nelson" url: https://spaceheavens.com/author/thelma-nelson/page/2/ published: 2023-04-06 updated: 2023-04-06 --- # Thelma Nelson Published 2023-04-06 Thelma Nelson is passionate about space exploration and the possibilities it holds. She has been an avid supporter of SpaceX and other private space companies, believing that these organizations have the potential to unlock the mysteries of the universe. She has been a vocal advocate for more investment in research and development of space technology. ## [Does nasa require a security clearance?](https://spaceheavens.com/does-nasa-require-a-security-clearance/) No, NASA does not require a security clearance. However, if you are interested in working for NASA, you may want … [Read more](https://spaceheavens.com/does-nasa-require-a-security-clearance/#more-5029) ## [How does nasa find planets?](https://spaceheavens.com/how-does-nasa-find-planets/) In order to find planets, NASA uses a method called radial velocity. This method measures theDoppler shift of a star … [Read more](https://spaceheavens.com/how-does-nasa-find-planets/#more-5028) ## How did the challenger disaster change nasa? The Challenger disaster was a wake-up call for NASA. The disaster caused NASA to re-evaluate its safety procedures and protocols. … Read more ## How many times has nasa gone to the moon? Since the launch of the Apollo 11 mission in 1969, NASA has completed six successful manned missions to the Moon. … Read more ## [Did nasa start out exploring the ocean?](https://spaceheavens.com/did-nasa-start-out-exploring-the-ocean/) In the early days of NASA, the agency focused on exploring the ocean. The first satellite launched by NASA was … [Read more](https://spaceheavens.com/did-nasa-start-out-exploring-the-ocean/#more-5025) ## How did nasa get started? NASA stands for the National Aeronautics and Space Administration. It is a United States government agency that is responsible for … Read more ## [How many space missions has nasa launched?](https://spaceheavens.com/how-many-space-missions-has-nasa-launched/) Since its inception, NASA has launched over 500 space missions. This includes both manned and unmanned missions, as well as … [Read more](https://spaceheavens.com/how-many-space-missions-has-nasa-launched/#more-5023) ## [How to become a nasa aerospace engineer?](https://spaceheavens.com/how-to-become-a-nasa-aerospace-engineer/) Aerospace engineering is the study of the design, construction, and science of aircraft and spacecraft. It is a highly technical … [Read more](https://spaceheavens.com/how-to-become-a-nasa-aerospace-engineer/#more-5022) ## How to be an engineer for nasa? For anyone who has dreamed of working for NASA, becoming an engineer is the best way to make that happen. … Read more ## How to become an aerospace engineer for nasa? Aerospace engineering is the branch of engineering that deals with the design, construction, and science of aircraft and spacecraft. Aerospace … Read more ## How many rovers has nasa sent to mars? Since it began exploring Mars in the 1960s, NASA has sent a total of nine robotic spacecraft to the planet. … Read more ## [How far is nasa from here?](https://spaceheavens.com/how-far-is-nasa-from-here/) This question can be difficult to answer because it depends on your location. If you are asking how far away … [Read more](https://spaceheavens.com/how-far-is-nasa-from-here/#more-5018)