只有宇宙才配得上“浩瀚无垠”//@江波2084:唉，浩瀚到令人窒息的宇宙，连光速都无能为力。
见过光（慢慢地）爬行吗？看这个，你就会看见。这个数据可视化是由行星科学家 James O'Donoghue 博士制作的。
光以每秒 300,000 公里的速度移动。这是宇宙速度的极限，每秒可以绕地球 7.5 圈。但这其实是乌龟的速度。
光在浩瀚的太空中挣扎。在地球之外，到达月球需要 1.25 秒。从地球到火星需要整整三分钟。而从太阳到地球，光需要 8 分钟才能到达。
但这不算什么。光要从星星到达我们这里，必须在太空中缓慢移动数年、数十年、数百年和数千年。当它到达你的眼睛时，那些星星可能已经不复存在了。这真是令人难以置信。
你怎么看？
Ever seen light crawl? Watch this and you will. This data visualisation is by Planetary Scientist Dr James O'Donoghue.
Light moves at 300,000 kilometers per second. It's the cosmic speed limit and can lap Earth 7.5 times in a second. But that's a tortoise pace, really.
Light struggles against the vastness of space. Beyond Earth, the time it takes to get to the Moon is 1.25 seconds. Earth to Mars is a whole three minutes. And from the Sun to Earth, light takes 8 minutes to travel.
But that's nothing. For light to reach us from the stars, it has to inch through space for years, decades, centuries and millennia. By the time it reaches your eyes, those stars might not even exist anymore. It's mind-blowing.
What do you think?
美国创业者的微博视频
光以每秒 300,000 公里的速度移动。这是宇宙速度的极限，每秒可以绕地球 7.5 圈。但这其实是乌龟的速度。
光在浩瀚的太空中挣扎。在地球之外，到达月球需要 1.25 秒。从地球到火星需要整整三分钟。而从太阳到地球，光需要 8 分钟才能到达。
但这不算什么。光要从星星到达我们这里，必须在太空中缓慢移动数年、数十年、数百年和数千年。当它到达你的眼睛时，那些星星可能已经不复存在了。这真是令人难以置信。
你怎么看？
Ever seen light crawl? Watch this and you will. This data visualisation is by Planetary Scientist Dr James O'Donoghue.
Light moves at 300,000 kilometers per second. It's the cosmic speed limit and can lap Earth 7.5 times in a second. But that's a tortoise pace, really.
Light struggles against the vastness of space. Beyond Earth, the time it takes to get to the Moon is 1.25 seconds. Earth to Mars is a whole three minutes. And from the Sun to Earth, light takes 8 minutes to travel.
But that's nothing. For light to reach us from the stars, it has to inch through space for years, decades, centuries and millennia. By the time it reaches your eyes, those stars might not even exist anymore. It's mind-blowing.
What do you think?
美国创业者的微博视频
