Classroom Questions Questions for ‘What scientists hope to learn from Great American Eclipse’ People can safely watch the eclipse on the ground using a pinhole eclipse “camera” as here. NASA even has a video to make another type of low-cost pinhole projector here. NASA Jet Propulsion Laboratory Share this:FacebookTwitterRedditGoogle ClassroomEmailPrint By Science News for Students August 21, 2017 at 6:00 am Classroom questions are available for free with registration. Learn more Register to access: Client key* E-mail* Log in Already Registered? Enter your e-mail address above.