One thing us as humans have never been able to fully understand is astronomy. Always having an unexplained mystery, astronomy also has served as a way to keep time and predict the future. The word “astronomy” is the study of heavenly bodies, meaning anything in the sky such as stars, galaxies, comets, planets, nebulae, and so on. A wide array of instruments is used to observe heavenly bodies today. These instruments include optical telescopes which are used to magnify objects that emit visible light. Some celestial bodies are very difficult or impossible to see with optical telescopes. To see these, we use radio, X-ray, ultraviolet, or infrared instruments. An advantage of radio astronomy is the fact that radio waves aren’t stopped by the sun or clouds, therefore the stars can be observed at any time. On a more pressing level, astronomy helps us study how to prolong the survival of our species.

Sreekala P

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