Powtawche Valerino | |
---|---|
![]() Valerino in 2017 | |
Nationality | Mississippi Choctaw, American |
Alma mater | Rice University Stanford University |
Occupation | Engineer |
Employer | NASA |
Powtawche N. Valerino is an American mechanical engineer at the NASA Jet Propulsion Laboratory. She worked as a navigation engineer for the Cassini mission.
Early life and education
[edit]Valerino was born to a Mississippi Choctaw mother and African-American father. She grew up on the Mississippi Choctaw reservation and is an enrolled member of the tribe.[1] When she was ten, she moved with her family to New Orleans. A few years later she saw the Space Shuttle Challenger explosion on television and became interested in science.[2] Valerino learned cello at age twelve, and still plays in the Pasadena Community Orchestra.[1][3] During high school, Valerino interned as a mechanical engineer as part of NASA's Summer High School Apprenticeship Research Program, where highly achieving students shadow NASA professionals.[4]
She obtained a bachelor's degree in mechanical engineering from Stanford University, and received her master's degree and doctoral degrees in mechanical engineering from Rice University.[5] During summers at graduate school, Valerino interned at Johnson Space Center in Houston and Stennis Space Center in Hancock County, Mississippi, where she worked on the X-38 vehicle (International Space Station lifeboat) team.[6] Her dissertation, Optimizing Interplanetary Trajectories to Mars via Electrical Propulsion, was submitted to Rice in 2005.[7] She was the first Native American to earn a PhD in engineering at Rice University.[6]
Research and career
[edit]![](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e1/Cassini-Huygens_lifted_of_with_a_Titan_4%2801%29B_from_Launch_Complex_40.jpg/211px-Cassini-Huygens_lifted_of_with_a_Titan_4%2801%29B_from_Launch_Complex_40.jpg)
Valerino joined the Jet Propulsion Laboratory's Mission Design and Navigation Section in 2005.[5] She first worked on the proposed Jupiter Icy Moon Orbiter mission, then transferred to the Cassini mission, where she was a navigator with the maneuver and trajectory team.[8][9] The Cassini mission far outlived the predicted four-year lifetime, with engineers like Valerino pushing it to thirteen years.[10] Throughout the Cassini mission, Valerino shared the spacecraft status and findings with the public.[11]
Her most recent project was the Parker Solar Probe spacecraft,[12] which launched on August 12, 2018.[13] It became the first satellite to fly as close to the sun as Helios 2 did in 1976.[14][15]
![Photograph of Valerino smiling standing at the site of the Space Launch System program](https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/Powtawche_Valerino_2019.jpg/220px-Powtawche_Valerino_2019.jpg)
Public engagement
[edit]Valerino has worked to recruit and encourage the participation of under-represented groups in science.[16] This has included working with Soledad O'Brien to encourage black and Latina young women to pursue careers in STEM at the PowHERful Summit.[17] In 2016 she received the National Association for the Advancement of Colored People Education Award for her outreach activities.[18] In 2017, Valerino joined 21st Century Fox in their promotion of the film Hidden Figures, which tells of the role of outstanding African-American mathematicians and scientists in the Apollo program.[19][20][21][22]
Valerino is a fan of comic books. She has also discussed strong women in graphic novels on podcasts.[23]
Selected publications
[edit]- Juan Arrieta, Christopher G. Ballard, Yungsun Hahn, Paul W. Stumpf, Powtawche N. Valerino, Sean V. Wagner. 2012. Cassini Solstice Mission Maneuver Experience: Year Two. AIAA/AAS Astrodynamics Specialist Conference. doi: 10.2514/6.2012-4433.
- Sean V. Wagner, Juan Arrieta, Yungsun Hahn, Paul W. Stumpf, Powtawche N. Valerino, and Mau C. Wong. (Preprint) AAS 13-717 Cassini Solstice Mission Maneuver Experience: Year Three. trs.jpl.nasa.gov (preprint).
- Powtawche N. Valerino, Brent Buffington, Kevin Criddle, Yungsun Hahn, Rodica Ionasescu, Julie A. Kangas, Tomas Martin-Mur, Ralph B. Roncoli and Jon A. Sims. 2014. Preliminary Maneuver Analysis for the Europa Clipper Multiple-Flyby Mission. AIAA/AAS Astrodynamics Specialist Conference. doi: 10.2514/6.2014-4461.
References
[edit]- ^ a b "Meet Powtawche Valerino: NASA JPL Navigation Engineer Who Personifies Patience, Persistence, and Perseverance". 2017-05-31. Retrieved 2018-01-13.
- ^ "Reaching for the stars | Rice Engineering". engineering.rice.edu. Retrieved 2018-01-13.
- ^ "Cellos - Pasadena Community Orchestra". Pasadena Community Orchestra. Retrieved 2018-01-13.
- ^ "Academic diversity: expanding the pipeline". New Scientist. Retrieved 2018-01-13.
- ^ a b "CCD STEMinar series - Caltech Center for Diversity". diversitycenter.caltech.edu. Retrieved 2018-01-13.
- ^ a b "Powtawche (Williams) Valerino, PhD". The National GEM Consortium. 2014-10-02. Retrieved 2018-01-13.
- ^ Neengay, Williams, Powtawche (2005). Optimization of interplanetary trajectories to Mars via electrical propulsion (Thesis). Rice University. Bibcode:2005PhDT........56W. hdl:1911/18840.
{{cite thesis}}
: CS1 maint: multiple names: authors list (link) - ^ "Saturn With a Side of Bacon". Cassini Legacy: 1997-2017. Retrieved 2018-01-13.
- ^ Valerino, Powtawche N. (2014). "Updating the Reference Trajectory for the Cassini Solstice Mission". SpaceOps 2014 Conference. doi:10.2514/6.2014-1880. ISBN 978-1-62410-221-9.
- ^ Ash, Summer (2017-09-21). "How a tiny space robot can change your life". Syfy. Retrieved 2018-01-13.
- ^ Knapton, Sarah; Horton, Helena (2017-04-26). "Nasa's Cassini spacecraft starts bold mission to dive between Saturn's rings". The Telegraph. ISSN 0307-1235. Retrieved 2018-01-13.
- ^ Ash, Summer (2017-09-21). "How a tiny space robot can change your life". SYFY WIRE. Retrieved 2021-03-31.
- ^ Chang, Kenneth (August 12, 2018). "Parker Solar Probe Launches on NASA Voyage to 'Touch the Sun'". The New York Times. Retrieved August 12, 2018.
- ^ "ARO 309 (Winter 2017) Class Page". www.trylam.com. Retrieved 2018-01-13.
- ^ Jones, Drew R. (2016). "Solar Probe Plus: Force Modeling and Unique Navigation Challenges". AIAA/AAS Astrodynamics Specialist Conference. doi:10.2514/6.2016-5425. ISBN 978-1-62410-445-9.
- ^ "CaSGC Supports Fresno State's Lyles College of Engineering Girls Summer Engineering Experience | California Space Grant Consortium". casgc.ucsd.edu. Retrieved 2018-01-13.
- ^ "A passion for sharing | Rice Engineering". engineering.rice.edu. Retrieved 2018-01-13.
- ^ "Check out NAACP Pasadena 31st Ruby McKnight Williams Awards Dinner - 2016 at Hilton Pasadena on Oct 13, 2016". Eventful. Retrieved 2018-01-13.
- ^ "Fox's 'Hidden Figures' inspires historic State Department program to support women in STEM around the world". 21st Century Fox Social Impact. 2017-11-02. Retrieved 2018-01-13.
- ^ "AMPAS, NASA Talk Science, Movies and Diversity at SIGGRAPH". The Hollywood Reporter. Retrieved 2018-01-13.
- ^ "Hidden Figures/Modern Figures: A Journey of Breakthroughs in Cinema and Space Travel". Oscars.org | Academy of Motion Picture Arts and Sciences. 2017-11-07. Retrieved 2018-01-13.
- ^ "Sloan Science & Film". www.scienceandfilm.org. Retrieved 2018-01-13.
- ^ "There's so much out there". ART19. Retrieved 2018-01-13.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction