Kenapa Cahaya Bintang Adalah Mesin Waktu?

Explains how astronomy allows humans to observe the past of the universe by capturing light from extremely distant cosmic objects. The concept of the light year is essential for understanding that light takes billions of years to reach Earth, making telescopes function like time machines for scientists. The phenomenon of redshift is used to measure distances and the rate of expansion of space, which helps verify extreme objects. In particular, the text highlights the achievement of the James Webb Space Telescope in discovering the galaxy JADES-GS-z14-0, which formed only about 300 million years after the Big Bang. This discovery challenges long-held theories about chemical evolution and the speed of formation of primordial galaxies early in the history of the cosmos. In addition to the scientific aspect, the narrative also touches on the philosophical side of humanity's desire to understand the origins of time and its existence.