astronomer

noun

Etymology: From Middle English astronomer, equivalent to astronomy + -er. Displaced native Old English tungolcræftiga.

1. One who studies astronomy, the stars or the physical universe; a scientist whose area of research is astronomy or astrophysics.

   “Pioneering American astronomer Vera Rubin once mentored fellow aspiring female astronomers and advocated for women in science. It’s fitting that the first national US observatory named for a female astronomer is in her honor.”

   “But none of those brown dwarfs were speeding along on a trajectory that would carry them out of the galaxy like “runaway” hypervelocity stars observed by astronomers in the last two decades.”