Students on this course will make observations using the 21-ft and 42-ft telescopes.
(Students on this course; will make; observations using the 21-ft and 42-ft telescopes) (observations; using; the 21-ft and 42-ft telescopes)
Students on this course observations
will make using
observations using the 21-ft and 42-ft telescopes
the 21-ft and 42-ft telescopes