在夜深人靜的時候，站在陽台抬頭看天，總覺得星星安靜得出奇，像是掛在天幕上的小燈泡，一動不動地閃爍著。可要是有人告訴你，咱們腳下的地球正拉著我們以每秒三十公里的速度在太陽周圍轉圈，你會信嗎？還真不是哄你玩的——地球就像一台高速列車，不帶喘氣兒地賓士在宇宙的軌道上，而且我們不僅坐在這輛車上，還一點都感覺不到晃。

This "train" journey of the earth is not a solo performance. It also has "brothers and sisters" – the moon, the solar system, and the Milky Way, all in their own orbits. Let's start with the closest - the moon. This little follower of the earth is revolving around the earth at a speed of more than a kilometer per second. Don't look at it meekly hanging in the night sky, it's actually so fast that it's terrifying.

接下來就是地球帶著月亮，馬不停蹄地繞太陽轉圈兒——每秒快要衝上三十公里了。想像一下，這速度相當於一顆子彈的幾十倍，一整年，地球跑一圈，剛好叫一聲春夏秋冬。

Don't think the sun is standing there. This "big brother" does not stop, it is running in the Milky Way with the entire solar system, and it can top 24 kilometers in a second. It's like a huge patrol, circling around the center of the galaxy, more lively than a racing car on the highway.

銀河系也不是個小傢伙，寬得驚人——八萬光年，放下地球這樣的星球，不知道能摞多少層。據說裡頭光是像太陽這樣的恆星，就得有四千億顆。每顆星星都在自己的“軌道”上跳舞，配合默契得跟交響樂團似的，不見得亂。

Interestingly, the stars do not run around, but circle according to some unbreakable pattern. This huge galaxy seems to be chaotic, but in fact, it has rules, as if there is an invisible baton controlling the whole audience behind it.

But that's not all. "The Milky Way is not a lone ranger, it and the Andromeda galaxy next door, and dozens of similar "neighbors", form a "big family" - this is called the local galaxy group. They are not noisy or noisy, each drawing a "lane" in space, and running in their own rhythm tacitly. Our earth, in one of these small corners, is silently carried forward by this big tide.

So the question arises - what are these groups of galaxies orbiting? Is there a center for a Big Mac? , so that all galaxies are dragged silently like iron filings being sucked by magnets? Scientists have brainstormed the possibility that there is a force deeper than a black hole hidden in the depths of the universe, attracting entire groups of galaxies to orbit it at a rapid rate. This speed could be hundreds of times faster than a bullet, or even faster than any spacecraft that humans have ever had.

If it really has this kind of power, how strong does it have to be to control thousands of galaxies, like a shepherd commanding millions of sheep, in an orderly manner, and the water of the well does not interfere with the water of the river? This is not science fiction, but a possibility that many scientists are seriously discussing. It's just that no one can say what this mysterious power looks like. We can only infer from the trajectory of the galaxy – it could indeed exist.

說到這裡，很多人可能要問，那我們地球到底是以多快的速度“漂”在宇宙裡？有學者提出，地球可能正以比子彈還快四百倍的速度穿越宇宙。聽著像是天方夜譚，但別急，這個“子彈四百倍”的說法背後也不是空穴來風。它可能是建立在多層級天體運動速度疊加上的估算，比如地球圍繞太陽轉，太陽帶著整個太陽系在銀河系中轉，銀河系又在整個星系群裡運動……多股速度“疊羅漢”，累加起來就是個天文數位。

But it also begs the question – how do you define "speed"? Compared to whom? In such a vast background of the universe, there is no absolutely static reference. You say that the earth is moving, but whether it is moving fast or slow depends on who you compare it to. We usually sit at home and feel calm, but if we zoom out to the galactic level, we would have been "thrown out" millions of kilometers.

Speaking of the interior of the Milky Way, there are also some "deviant" small galaxies. For example, the small galaxy called the Big Magellanic Cloud, there are stars in it that "catapult" out and rushed into the Milky Way, and the speed is terrifying. This phenomenon may also be caused by some special energy or gravitational interference in the universe. Perhaps, these "lost planets" are the "test pilots" under the influence of mysterious forces.

From the solar system to the Milky Way, from the Milky Way to the local group of galaxies, from the local group of galaxies to the higher-level structures, the universe is like an endless web, with intertwined lines and nested layers. We are only now getting a glimpse of the scraps, the deeper secrets, hidden in the darkness that the naked eye cannot see or recognise with telescopes.

At this point, you may have to ask again: Are we humans too small? The answer is perhaps yes. But it is precisely because we are small that people admire the courage of this exploration. Even if the earth is traveling through the universe at high speed, we still use telescopes and detectors to remove the veil of mystery little by little.

Recently, a new round of deep-space observations jointly carried out by a number of scientific research institutions is trying to catch the behavior of those stars that are operating anomalously. They want to see if there really is a "big boss" who quietly controls the rhythm of the entire universe. Don't forget, not long ago, the probe caught some stars at the edge of the Milky Way galaxy moving their trajectories offset, like a car suddenly spinning on the highway, which is obviously not a natural phenomenon. Behind the scenes, is there a "hand" pushing? It's hard to say.

For now, scientists are trying to further trace the trajectories of these shifting stars, hoping to find out the hidden forces behind them. This is a journey of "chasing stars" without gunpowder, and every small detail may become the key to open the door to the universe.

In the final analysis, we are still the ones who are in a daze at the night sky, but now we have learned to use technology to make telescopes, turning "daze" into "research". It's like when you read a book in the sky, the first few pages are still foggy, and the answer may be written later.

這一切還在繼續。接下來，這些星體是否會給我們新的線索？那個傳說中的“終極引力中心”到底藏在哪個角落？速度比子彈還快四百倍的穿越旅程會不會撞上什麼“路障”？沒人能說清楚，但這恰恰就是宇宙的魅力所在——你永遠不知道下一個轉角，會不會就遇上那扇通往宇宙奧秘的大門。