Telescope set to unravel cosmic mysteries

    China Daily | Updated: 2022-05-17 07:42
    Share
    Share - WeChat
    A view of the Five-hundred-meter Aperture Spherical Telescope in Pingtang, Guizhou province. Amateur astronomers have given the facility the nickname Tianyan, or "The Eye of Heaven". [OU DONGQU/XINHUA]

    Shared orbit

    During its normal observations, the telescope will fly independently in the same orbit as China's space station, but at a great distance apart. The in-orbit construction of the space station is expected to be completed this year.

    Zhan said the telescope was initially designed to be mounted on the space station, but there would have been disadvantages such as vibration, potential contamination, stray light and line-of-sight obstruction caused by the space station's proximity.

    As a result, a new design was adopted, putting the telescope in the orbit of the space station but keeping them far from each other during normal operations.

    However, the CSST will dock with the space station for refueling and servicing-either as scheduled or whenever necessary-making its maintenance more affordable than Hubble.

    From 1993 to 2009, NASA launched space shuttles on five servicing missions for Hubble to undertake repairs, replace parts and install new instruments.

    The CSST, which is expected to start scientific operations in 2024, has a nominal mission life of 10 years, but in principle, that could be extended.

    The telescope will take pictures of 40 percent of the sky and transmit massive amounts of data back to Earth, which scientists across the world will be able to study, Li said, adding that its main objective is to address the most basic questions about the universe.

    It will observe well over 1 billion galaxies and measure their positions, shapes and brightness, which may help explain how those galaxies evolved.

    "We know that our universe is expanding with an acceleration, and we can calculate its current expansion rate, but it's still unknown what causes the acceleration," Li said. "CSST observations may offer answers and unveil new physics."

    The telescope will also be able to help determine the upper limit of neutrino mass and shed light on the mysterious phenomena of dark matter and dark energy. They are believed to account for the majority of the universe's mass-energy content.

    |<< Previous 1 2 3 4 Next   >>|
    Top
    BACK TO THE TOP
    English
    Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
    License for publishing multimedia online 0108263

    Registration Number: 130349
    FOLLOW US
    高清无码中文字幕在线观看视频| 欧美日韩中文国产va另类| 曰韩中文字幕在线中文字幕三级有码| 最好看的电影2019中文字幕 | 无码人妻丝袜在线视频| 亚洲Av无码国产情品久久| 亚洲av永久无码精品国产精品| 色噜噜综合亚洲av中文无码| 久久精品无码一区二区三区免费| 伊人久久综合精品无码AV专区 | 无码内射中文字幕岛国片| 97久久精品无码一区二区| 亚洲综合av永久无码精品一区二区| 久久精品天天中文字幕人妻| 久99久无码精品视频免费播放| 无码无套少妇毛多18PXXXX| 白嫩少妇激情无码| 线中文在线资源 官网| 国产中文字幕在线视频| 99久久人妻无码精品系列蜜桃| 无码人妻少妇久久中文字幕蜜桃| 在线欧美天码中文字幕| 日韩精品中文字幕第2页| 亚洲中文字幕无码中文字在线| 亚洲精品97久久中文字幕无码| 国产成人无码精品一区在线观看| 色欲狠狠躁天天躁无码中文字幕| 一本加勒比HEZYO无码资源网| 免费无码又爽又刺激网站直播| 人妻精品久久久久中文字幕 | 亚洲七七久久精品中文国产| 天堂8а√中文在线官网| 中文字幕精品视频| 在线日韩中文字幕| 亚洲日本欧美日韩中文字幕| 欧美视频中文字幕| 中文字幕亚洲色图| 欧美日韩中文字幕在线观看| 色综合久久中文字幕综合网 | 最近中文字幕2019视频1| 中文字幕日本在线观看|