His laws changed all of physics and astronomy. His laws made it possible to calculate the mass of the sun and planets. The way it's done is immensely beautiful. If you know the orbital period of any planet, say, Jupiter or the Earth and you know its distance to the Sun; you can calculate the mass of the Sun. Doesn't this sound like magic?We can carry this one step further - if you know the orbital period of one of Jupiter's bright moons, discovered by Galileo in 1609, and you know the distance between Jupiter and that moon, you can calculate the mass of Jupiter. Therefore, if you know the orbital period of the moon around the Earth (it's 27.32 days), and you know the mean distance between the Earth and the moon (it's about 200,039 miles), then you can calculate to a high degree of accuracy the mass of the Earth. … But Newton's laws reach far beyond our solar system. They dictate and explain the motion of stars, binary stars, star clusters, galaxies and even clusters of galaxies. And Newton's laws deserve credit for the 20th century discovery of what we call dark matter. His laws are beautiful. Breathtakingly simple and incredibly powerful at the same time. They explain so much and the range of phenomena they clarify is mind boggling. By bringing together the physics of motion, of interaction between objects and of planetary movements, Newton brought a new kind of order to astronomical measurements, showing how, what had been a jumble of confused observations made through the centuries were all interconnected.
Maybe we're just falling stars, we once danced in the same skyline looking down at the world. And we've fallen like all others, from near and far, we've gathered together, but separated by time and space, keeping a part of that light that we've came with and spreading it in this dark world that we've chosen to live in, in order to shine some light and love around. Maybe we've chosen to believe one truth today, and find it to be false tomorrow. Maybe we're trying to not get attached to the idea that we now know it all. At night, we see the truth of where we've fallen from, gazing in that night sky full of distant stars, constellations, planets, the reflection of the sun on the moon, all with their own stories to tell. Sometimes we wonder why would we leave such a mysterious place, with an infinite amount of stories and wonders. Maybe it's because as stars we could've only seen each other's light from afar, but here we can listen more carefully to each other's story, embrace each other and kiss, discover more and more of what can be seen when infinite star dust potential is put into one body and given freedom to walk the Earth and wander, love and enjoy every moment until coming back. Maybe in the morning, we'll only see one star shining up there and forget the others. Maybe that is also how life and death is, and the beauty of the sunrise and sunset that come in between, our childhood years and old years, when we reflect on the stars that we once were and that we will once again be. Maybe, just maybe.