What is an artificial star?
A)a meteor
B)a satellite orbiting Earth
C)a point of light in Earth's atmosphere created by a laser for the purpose of monitoring atmospheric fluctuations
D)the unseen member of a binary star system
E)a possible source of dark matter in the universe

Question

Quizplus · Accepted Answer

An artificial star is a point of light created by a laser in Earth's atmosphere, used for the purpose of monitoring atmospheric fluctuations. It is created by shining a laser beam into the sky, causing sodium atoms to fluoresce and create a spot of light that can be used as a reference point for measuring atmospheric turbulence.

What Is an Artificial Star