UC知道接下的翻译
来源：百度知道 编辑：UC知道 时间：2024/06/28 01:23:27
What do we need to do?
Why don't we just look at galaxies and see how they evolve? Galaxies evolve over billions of years, which is why like evolutionary biologists, we can't just sit there and watch galaxies change. Instead, we need to look at the fossil record contained in the galaxies around us which provides only *one* snapshot of the universe.
The way scientists get around this problem is by analysing pictures of galaxies with up-to-date technology in as much detail as possible. Astronomers have spent many decades trying to measure basic galaxy properties such as age, mass or dustiness that may give us some clues as to how they formed and evolved and what precisely the connection between spiral and elliptical galaxies is. However, most studies of galaxies so far have only looked at a few dozen or hundred galaxies in the nearby universe and many aspects of galaxy formation and evolution are still a mystery.
However, with the advent of the
Why don't we just look at galaxies and see how they evolve? Galaxies evolve over billions of years, which is why like evolutionary biologists, we can't just sit there and watch galaxies change. Instead, we need to look at the fossil record contained in the galaxies around us which provides only *one* snapshot of the universe.
The way scientists get around this problem is by analysing pictures of galaxies with up-to-date technology in as much detail as possible. Astronomers have spent many decades trying to measure basic galaxy properties such as age, mass or dustiness that may give us some clues as to how they formed and evolved and what precisely the connection between spiral and elliptical galaxies is. However, most studies of galaxies so far have only looked at a few dozen or hundred galaxies in the nearby universe and many aspects of galaxy formation and evolution are still a mystery.
However, with the advent of the
译文：
我们需要做什么？
我们为什么不去观察星系看看他们是怎样发展的呢？星系的发展超过十亿年，像是进化的生物学，我们不能仅仅是坐在那里看星系变化。相反的，我们需要看看围绕我们的由快镜拍摄的仅一瞬间的星系的化石记录。
科学家们解决这个问题的方法是通过最新的技术尽可能的细致地分析星系照片。天文学家花费了几十年试图去估量基本的星系特性，比如年龄，质量或者含尘量，这些可能会给我们关于星系是如何形成和发展的以及椭圆星系和螺旋星系之间的精确联系是怎样的一些线索。但是，现在为止更多的关于星系的研究只是对于一小部分或几百个就近的星系，而很多关于星系形成和发展方面的问题仍然是一个谜。
但是，随着21世纪的到来，大范围的天文学的测量时代到来了！斯隆数字太空测量（简称SDSS）正在进行一大部分宇宙的图片采集而且最终将要发现数以百万的星系，天文学家终于可以用大量数字比较不同的地区发现他们是如何形成和发展的而对他们的起源得出正确的结论了。
但是除去这数以万计的星系，我们怎么知道哪些是椭圆星系哪些是螺旋星系呢？答案很简单：观察他们！确实，到现在星系还以肉眼观察他们的形状来被区分。而且事实上，技术对这方面的帮助也很小。这证明了人类大脑在识别图像却别螺旋星系和椭圆星系方面远远优于计算机。因此肉眼观察的工作最好是人工来做，即使是几百个目标，那么一百万个呢？甚至是最受天文学家专注的星系也有太多。我们需要上千人来进行检阅星系图像去区分椭圆星系或是螺旋星系，我们需要你的帮助。