"The cosmos is all there is, or ever was, or ever will be"
Episode 3: "We were born into a mystery…
beneath a blanket of stars”
The comet was regarded by the ancients as a sign of disaster and doom to come. It broke the calm of the starry sky and brought deep fear to people. The deduction of Newton's law of gravitation on the trajectories of stellar bodies and Halley's successful prediction of the comet's "return" in 1758 have revealed the truth of the motion of all things for mankind, allowing people to appreciate the beauty of comets without fear.
If you are fortunate, I hope to observe the return of Halley's Comet in 2061, paying tribute to the ancestors' exploration of natural science. According to the film, according to the reasoning of universal gravitation, the Milky Way will merge with the Andromeda Galaxy in billions of years. I wonder if there will be humans or intelligent creatures on other planets in the distant future, who can enjoy this event that lasts billions of years. What about the star show?
Episode 4: "The ghost stars...still shine their light upon us long after they're gone"
A very exciting and moving episode. Each of us may have imagined a time machine, traveling through time and space, roaming the past and the future.
I like the way the telescope is seen as a time machine in the film. It takes years, centuries or even billions of years for starlight to reach Earth. We look up at the stars, and each twinkling star is the intersection of the past and the present. Just as it takes eight minutes for sunlight to reach Earth, we can always see the sun as it was eight minutes ago.
Black holes may become tunnels through time and space. The huge gravitational force of black holes will swallow even light. If we can cross the boundaries of black holes, we may be able to see the history and future of the entire universe. Because time will be stretched to the extreme under the distortion of the black hole, just like the scene of the movie "Interstellar", in the black hole, the four-dimensional space can also be seen and touched, just like books on a bookshelf. The four-dimensional space-time itself can be deformed, it can go anywhere at any speed, and the interstellar shuttle is also possible.
Memory may be another time machine. Under the influence of his father, John became an excellent scientist and continued his father's deep space exploration career. The epitaph John wrote for his father was "He broke the wall of heaven". The narrator of this film, Neil, embarked on the road of scientific exploration with the help of his teacher, and became a science communicator like his teacher. The road of life will face many forks and hesitations, and we are always grateful and deeply remembered those who have brought us warmth. In reality, we cannot go back to the past, but the memory preserves that precious scene and brings the past to the present.
Episode 5: The Secret of Light
This episode tells the story of mankind's long-term exploration of light. From Mozi, Ben Hassen, Newton, to William Herschel and Joseph, mankind has deciphered the time and space contained in light in thousands of years. The law of , condensed into a key to open the door of the universe.
The scene where the city is constantly changing in the light waves at the end of the film is really shocking:
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