Translate the following sentence to French:
  Astrophysicists, such as Canada Research Chair Dr. Martin Houde believe that understanding the origin of the stars is of critical importance because as the stars form, they acquire the characteristics that determine how they live their lives, affect their galactic neighbourhoods, and ultimately die.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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  Les astrophysiciens tels que M. Martin Houde, Ph.D., titulaire d'une chaire de recherche du Canada, estiment qu'il est essentiel de connaître l'origine des étoiles, parce que, lors de leur formation, celles-ci acquièrent les caractéristiques qui déterminent la façon dont elles vivront , affecteront leur voisinage dans leurs galaxies respectives et mourront.