Astronomy was crucial to the development of [[safe]] and accurate [[navigation]] for ships, and observations of the movement of [[sky|heavenly bodies]] helped lead to the theories we now call [[physics]]. In fact, much of astronomy today relies on physics, thus many astronomers are considered astrophysicists.<br /> | Astronomy was crucial to the development of [[safe]] and accurate [[navigation]] for ships, and observations of the movement of [[sky|heavenly bodies]] helped lead to the theories we now call [[physics]]. In fact, much of astronomy today relies on physics, thus many astronomers are considered astrophysicists.<br /> |