But even very large telescopes find Mars a difficult target, it's just too small.
但是，即使非常大的天文望远镜发现火星一个困难的目标，只是太小了。
On the ground, each of the four Very Large Telescopes is busy keeping an eye on the distant universe.
在地面上，四个超大型望远镜中的每一个都忙碌着，凝望着遥远的宇宙。
Modern astronomers are accustomed to using large telescopes and other complex instruments to study the sky.
近代的天文学家习惯于使用大型望远镜及其他一些复杂仪器来研究天象。
In near Infrared waveband the adaptive optics and interferometry have been used in large telescopes successfully.
在近红外波段，自适应光学和干涉术已在大望远镜上获得成功。
Myhrvold said Mainzer responded that large telescopes were not designed to point that close to the ground. But the one in Chile is, he noted.
迈尔沃尔德说，迈因策尔回应称大型望远镜并非为观测如此接近地面的点而设计。但他指出，智利的那架却是为此设计的。
"Radio waves are very long and so you need very large telescopes," said Rick Perley, who is working on the 21st century Expanded VLA, or EVLA.
“无线电波很长，因此你需要超大的望远镜，”21世纪扩展型VLA (EVLA)的研究者，里克波雷说。
While these exploding stars themselves last for mere minutes, their fading "afterglow" light remains observable with large telescopes for days or even weeks.
虽然超新星的爆发仅持续几分钟，但它们逐渐消退的“余辉”依然可以在数天内甚至数星期内由大型望远镜观察到。
Small telescopes see a lot of sky but can detect only strong signals. Large ones, which can detect weak signals, have a narrow focus.
大型的望远镜虽可以检测到微弱的信号，却只有很小的焦距。
Composite image of the galaxy cluster Abell 2744, also known as Pandora's cluster, taken by the Hubble and Chandra space telescopes and the Very Large telescope in Chile.
Abell 2744星系团又称潘多拉星团的合成图象，由哈勃望远镜、钱德拉太空望远镜和在智利的甚大望远镜所拍摄。
NASA estimates there are 19 500 asteroids at least 330 feet wide - large enough to detect with telescopes - within 28 million miles of Earth.
这些物体是大量存在的，据NASA估计，仅地球28 000 000英里范围内超过330英尺宽的小行星就达19 500个，使用望远镜就可以观测到。
Because of the complicated launch and on-orbital working condition, and working with multiband, AF technology is a key technology for large space telescopes.
对于大型的空间望远镜，由于发射和在轨工作环境复杂，且常要求在多波段下工作，从而使得在轨自动调焦成为必不可少的一项关键技术。
The special geographical location and excellent radio station sites in Xinjiang have unique advantages for the construction and operation of large diameter telescopes.
新疆的特殊地理位置和优良的无线电台址，建设运行大口径望远镜具有得天独厚的优势。
This image shows the interior of one of the four 8.2-metre Unit Telescopes at ESO's Very Large Telescope (VLT) in Paranal, Chile.
本图是位于智利帕拉纳尔山顶的8.2米口径甚大望远镜（VLT）的内部。
It takes a large team of people to put together a data release: from collecting the data at the telescopes, to processing the data, analyzing the data, and documenting the data.
数据释放要经过很多环节：从望远镜收集数据、处理数据、分析数据、以及准备相关文档，这是我们大团队共同努力的结晶。
Data from large ground-based telescopes in Hawaii, Arizona, and Chile also contributed to the studies by measuring the properties of the galaxies.
数据从大型望远镜在夏威夷，亚利桑那州，智利也带动了研究通过测量星系的性质。
Data from large ground-based telescopes in Hawaii, Arizona, and Chile also contributed to the studies by measuring the properties of the galaxies.
数据从大型望远镜在夏威夷，亚利桑那州，智利也带动了研究通过测量星系的性质。
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