• Since its launch on July 23, 1999, the Chandra X-ray Observatory has been NASA's flagship mission for X-ray astronomy, taking its place in the fleet of "Great Observatories."

      Who we are
      NASA's Chandra X-ray Observatory is a telescope specially designed to detect X-ray emission from very hot regions of the Universe such as exploded stars, clusters of galaxies, and matter around black holes. Because X-rays are absorbed by Earth's atmosphere, Chandra must orbit above it, up to an altitude of 139,000 km (86,500 mi) in space. The Smithsonian's Astrophysical Observatory in Cambridge, MA, hosts the Chandra X-ray Center which operates the satellite, processes the data, and distributes it to scientists around the world for analysis. The Center maintains an extensive public web site about the science results and an education program.

      What we do
      Chandra carries four very sensitive mirrors nested inside each other. The energetic X-rays strike the insides of the hollow shells and are focussed onto electronic detectors at the end of the 9.2- m (30-ft.) optical bench. Depending on which detector is used, very detailed images or spectra of the cosmic source can be made and analyzed.

      What we are excited about
      Chandra has imaged the spectacular, glowing remains of exploded stars, and taken spectra showing the dispersal of elements. Chandra has observed the region around the supermassive black hole in the center of our Milky Way, and found black holes across the Universe. Chandra has traced the separation of dark matter from normal matter in the collision of galaxies in a cluster and is contributing to both dark matter and dark energy studies. As its mission continues, Chandra will continue to discover startling new science about our high-energy Universe. Follow us on 小飞机网络加速官网 and Twitter. More

    Chandra's elliptical orbit takes the spacecraft to an altitude of approximately 139,000 km (86,500 mi) -- more than a third of the distance to the Moon. Find out the current position of Chandra in relation to the surface of the Earth from NASA/JPL's Eyes on the Solar System applet. Our Satellite Tracking Tutorial also shows you just what the 小飞机网络加速官网.

    Operating in space since 1999, Chandra detects and images X-ray sources that lie within our Solar System to those billions of light years away. The results from Chandra help explore high-energy phenomena and provide insights into the Universe's structure and evolution. 小飞机加速器

    Current Chandra Location
    小飞机网络加速官网
    Chandra
    NASA's Chandra X-ray Observatory is a telescope specially designed to detect X-ray emission from very hot regions of the Universe such as exploded stars, clusters... More
    Learn about Milky Way
    Milky Way
    Today we know that the Milky Way is our home galaxy—a vast rotating spiral of gas, dust, and hundreds of billions of stars. The Sun and its planetary system formed... More
    小飞机网络加速官网
    Solar System
    One Star, eight planets, and a myriad of moons, comets, and asteroids. This is the Earth's local neighborhood known as the Solar System... More
    Learn about Galaxies
    Galaxies
    There are billions of galaxies throughout the Universe and they come in different shapes and sizes. Within these galaxies are black holes, neutron stars, and... More
    Learn about Supernovas
    小飞机加速器
    Supernovas are some of the most dramatic events in the cosmos. These titanic events send shock waves rumbling through space and create giant bubbles of... More
    Learn about Galaxy Clusters
    Galaxy Clusters
    Galaxy clusters are the largest objects in the Universe held together by gravity. Chandra detects the superheated gas that fills the space between the hundreds and... More
    小飞机网络加速官网
    Black Holes
    If a star has three times or more the mass of the Sun and collapses, it can form a black hole. These bizarre objects are found across the Universe -- within double... More
    Learn about Cosmology
    Cosmology
    Most of the Universe is dark. The protons, neutrons and electrons that make up the stars, planets and us represent only a small fraction of the mass and energy of... More
    • 小飞机加速器
    • What is an X-ray?
    • What is Light?
    • What is a Light year?
    • What is a Black Hole?
    • What is a Supernova?
    • What is Dark Matter?
    • What is Dark Energy?

    科学上网如何让小飞机顺利上车 - 自然博客:2021-5-15 · 最近使用科学上网+小飞机发现一个问题。在PAC模式下,小飞机直接找不到回家的路,这个有点糟糕,为什么呢?自然手动修改了本地的PAC文件依然不管用,但是在全局模式下就可众。使用科学上网的小伙伴一般情况下都是PAC分流模式比较方便 ...

    Chandra's unusual orbit was achieved after deployment by a built-in propulsion system which boosted the observatory to a high Earth orbit. This orbit, which has the shape of an ellipse, takes the spacecraft more than a third of the way to the moon before returning to its closest approach to the Earth of 9,942 miles. More

    Chandra Spacecraft

    易通网络加速器 v3.5.0.0 官方版下载 - 免费绿色软件下载 ...:2021-7-29 · 统一下载站提供易通网络加速器官方下载,易通网络资讯凭借专业的技术团队通过近几年的摸索众及研究,精心打造了各种类型的伕理产品和售后服务.它适合所有类型游戏人群,具备防封优势 、稳定优势 、速度优势和服务优势.使得它得到了很多用户的好评。

    Eventually, X-rays were found to be another form of light. Light is the by-product of the constant jiggling, vibrating, hurly-burly of all matter. More

    X-rays

    The word light usually makes one think of the colors of the rainbow or light from the Sun or a lamp. This light, however, is only one type of electromagnetic radiation. Electromagnetic radiation comes in a range of energies, known as the electromagnetic spectrum. The spectrum consists of radiation such as gamma rays, x-rays, ultraviolet, visible, infrared and radio.

    Electromagnetic radiation travels in waves, just like waves in an ocean. The energy of the radiation depends on the distance between the crests (the highest points) of the waves, or the wavelength. In general the smaller the wavelength, the higher the energy of the radiation. More

    小飞机加速器

    In astronomy, distances are measured in units of light years, where one light year is the distance that light travels in a year—10 trillion kilometers. For historical reasons having to do with measuring distances to nearby stars, professional astronomers use the unit of parsecs, with one parsec being equal to 3.26 light years. More

    Light year

    A blackhole is a dense, compact object whose gravitational pull is so strong that - within a certain distance of it - nothing can escape, not even light.

    If a star has three times or more the mass of the Sun and collapses, it can form a black hole. These bizarre objects are found across the Universe -- within double star systems and at the centers of galaxies where giant black holes grow. X-ray telescopes like Chandra can see superheated matter that is swirling toward the event horizon of a black hole. Chandra has revealed how black holes impact their environments, how they behave, and their role in helping shape the evolution of the cosmos.  More

    Black Hole

    侠盗猎车手5 GTA5怎么联机-百度经验:2021-9-21 · 侠盗猎车手5 GTA5怎么联机,FiveM是一款GTA5联机软件。且开发简单实用,官方有专业的服务端开发论坛,插件应有尽有,服务器内自带MOD(兰博基尼LP-750,布加迪威龙等等),且游戏玩法众多(漂移服务器,吃鸡模式,RP服务器,仿OL服务器 ...

    Supernovas are some of the most dramatic events in the cosmos. These titanic events send shock waves rumbling through space and create giant bubbles of gas that have been superheated to millions of degrees. Chandra has captured supernovas and the remnants they've left behind in spectacular X-ray images, helping to determine the energy, composition, and dynamics of these celestial explosions.  小飞机网络加速官网

    小飞机加速器

    Dark matter is a term used to describe matter that can be inferred to exist from its gravitational effects, but does not emit or absorb detectable amounts of light.

    The nature of dark matter is unknown. A substantial body of evidence indicates that it cannot be baryonic matter, i.e., protons and neutrons. The favored model is that dark matter is mostly composed of exotic particles formed when the universe was a fraction of a second old. Such particles, which would require an extension of the so-called Standard Model of elementary particle physics, could be WIMPs (weakly interacting massive particles), or axions, or sterile neutrinos.  More

    Dark matter

    泡泡加速器_官方电脑版_华军纯净下载:2021-3-30 · 泡泡加速器官方版是一款专用于绝地求生大逃杀游戏的加速工具,泡泡加速器官方版功能强劲,绿色小巧,能够让你彻底告别延迟与丢包,让你的游戏更加流畅,完美体验游戏。泡泡加速器采用云智能加速技术,傻瓜式优化压榨电脑性能,按小时计费,方便快捷,畅玩到爽!

    At the close of the 20th century, our perception of the Universe was jolted. Instead of slowing down after the Big Bang, the expansion of the Universe was found to be accelerating. Was the cosmic acceleration due to Einstein's cosmological constant, a mysterious form of "dark energy," or perhaps a lack of understanding of gravity? The answer is still out there. By studying clusters of galaxies, X-ray astronomy is tackling this question using powerful techniques that are independent of other methods currently being employed or proposed for the future.  More

    小飞机加速器
    Solar System
    Solar System
    Supernovas
    Supernovas
    Milky Way Galaxy
    Milky Way Galaxy
    小飞机网络加速官网
    Groups of Galaxies
    Normal Stars
    Normal Stars
    Neutron Stars
    Neutron Stars
    Normal Galaxies
    Normal Galaxies
    Cosmology/Deep Field
    Cosmology/Deep Field
    White Dwarfs
    White Dwarfs
    Black Holes
    Black Holes
    Active Galaxies & Quasars
    小飞机加速器
    Miscellaneous
    小飞机加速器

    divider
    小飞机加速器
    Explore free tools to help you learn and teach more about the Universe that all of us inhabit. Pencil & paper activities, computer-based learning, and other science resources await: Make the Most of Your Universe

    Learn About
    Latest
    小飞机网络加速官网
    Podcast:
    A Tour of X-rays From a Newborn Star Hint at Our Sun's Earliest Days
    Black Hole Fails to Do Its Job
    Press Release:
    Black Hole Fails to Do Its Job
    小飞机网络加速官网
    Blog:
    Happy Little Accidents: The Happenstance Finding of Obscured Growing Supermassive...
    小飞机加速器
    Exploring the Extreme:
    20 Years of Chandra
    Explore
    Chandra Calendar
    Printable 2024 Chandra Calendar
    Print your own 2024 Chandra calendar!
    3d Files
    3D Files and Resources:
    Printable 3D Chandra Spacecraft.
    Black hole primer
    Black Holes:
    A Black Hole Primer with Chandra
    小飞机网络加速官网
    The Science of X-ray Technology:
    本地网络异常或不稳定的处理建议 - 网易UU网游加速器游戏百科:2021-1-27 · 编辑全文 本地网络异常或不稳定的处理建议 最新更新: 2021-01-27 22:12:20 关键词: 延迟 不稳定 本地 网络 丢包 抖动 卡 路由器 异常 无线网络 目录 亲爱的UU用户: 请您更新至最新版本UU客户端后根据众下步骤进行排查。一、如何打开UU网络 ...

    Top Rated Images
    SpARCS1049

    • 小飞机网络加速官网
    • 1
    • 2
    • 3
    • 4
    • 5

    SpARCS1049
    小飞机加速器

    • Currently 4.19/5
    • 1
    • 2
    • 3
    • 4
    • 5

    MAXI J1820+070
    HOPS 383

    • Currently 4.17/5
    • 1
    • 2
    • 3
    • 4
    • 5

    HOPS 383
    Center of the Milky Way

    • 小飞机加速器
    • 1
    • 2
    • 3
    • 4
    • 5

    Center of the Milky Way
    Obscured AGN in the Chandra Deep Field South

    • 小飞机加速器
    • 1
    • 2
    • 3
    • 4
    • 5

    Obscured AGN in the Chandra Deep Field South
    Abell 2384

    • Currently 4.02/5
    • 1
    • 2
    • 3
    • 4
    • 5

    Abell 2384
    小飞机网络加速官网

    • Currently 4.00/5
    • 1
    • 2
    • 3
    • 4
    • 5

    小飞机网络加速官网
    小飞机加速器

    • Currently 3.99/5
    • 1
    • 2
    • 3
    • 4
    • 5

    Ophiuchus
    小飞机加速器

    • Currently 3.98/5
    • 1
    • 2
    • 3
    • 4
    • 5

    Perseus Cluster
    GSN 069

    • Currently 3.98/5
    • 1
    • 2
    • 3
    • 4
    • 5

    GSN 069
    The Core of M87

    • Currently 3.95/5
    • 1
    • 2
    • 3
    • 4
    • 5

    The Core of M87
    Tycho's Supernova Remnant

    • Currently 3.95/5
    • 1
    • 2
    • 3
    • 4
    • 5

    Tycho's Supernova Remnant
    3D Models

    • Currently 3.95/5
    • 1
    • 2
    • 3
    • 4
    • 5

    3D Models
    M87

    • Currently 3.94/5
    • 1
    • 2
    • 3
    • 4
    • 5

    M87
    Perseus

    • Currently 3.94/5
    • 1
    • 2
    • 3
    • 4
    • 5

    Perseus
    小飞机网络加速官网

    • Currently 3.93/5
    • 1
    • 2
    • 3
    • 4
    • 5

    SDSS J0849+1114
    Archive Collection

    • Currently 3.93/5
    • 1
    • 2
    • 3
    • 4
    • 5

    Archive Collection
    小飞机加速器

    • Currently 3.93/5
    • 1
    • 2
    • 3
    • 4
    • 5

    Phoenix Cluster
    Terzan 5

    • Currently 3.93/5
    • 1
    • 2
    • 3
    • 4
    • 5

    小飞机加速器
    小飞机加速器

    • Currently 3.92/5
    • 1
    • 2
    • 3
    • 4
    • 5

    Perseus Cluster
    Crab Nebula

    • Currently 3.92/5
    • 1
    • 2
    • 3
    • 4
    • 5

    Crab Nebula
    小飞机网络加速官网

    • Currently 3.91/5
    • 1
    • 2
    • 3
    • 4
    • 5

    Crab Nebula
    QSO PS0167-13

    • Currently 3.91/5
    • 1
    • 2
    • 3
    • 4
    • 5

    QSO PS0167-13
    小飞机网络加速官网

    • Currently 3.91/5
    • 1
    • 2
    • 3
    • 4
    • 5

    Positive Feedback Black Hole
    W49B

    • Currently 3.90/5
    • 1
    • 2
    • 3
    • 4
    • 5

    W49B
    小飞机加速器

    • Currently 3.90/5
    • 1
    • 2
    • 3
    • 4
    • 5

    小飞机加速器
    小飞机网络加速官网

    • Currently 3.89/5
    • 1
    • 2
    • 3
    • 4
    • 5

    小飞机网络加速官网
    小飞机网络加速官网

    • Currently 3.89/5
    • 1
    • 2
    • 3
    • 4
    • 5

    MRK 1216
    J2150

    • Currently 3.88/5
    • 1
    • 2
    • 3
    • 4
    • 5

    J2150
    Ring Galaxy AM 0644-741

    • Currently 3.88/5
    • 1
    • 2
    • 3
    • 4
    • 5

    Ring Galaxy AM 0644-741
    Photo Album
      Images by Science Category
      Images by Date
    小飞机加速器
      Images by Sky Map
    Press Room
      Release by Science Category
      Release by Date
      Latest Status Report
    小飞机加速器
      LIGHT: Beyond the Bulb
      Here, There, and Everywhere
      STOP for Science
      From Earth to the Universe
      Aesthetics & Astronomy
    小飞机网络加速官网
    CXC Science
    Archive
    Proposer
    Data Analysis
    Data Centers
    Calibration
    Visit Chandra @ NASA               Physics of the Cosmos

    Future X-ray Missions
    Connect
    小飞机网络加速官网
    Updates by RSS
    Click here to receive updates
    Email
    Contact Us:
    cxcpub@cfa.harvard.edu
    Subscribe
    Subscribe
    Receive updates by email

    • cloud
    • 小飞机加速器
    • 小飞机网络加速官网
    Popular Search Terms
    sun G1.9 0.3 小飞机加速器 stellar evolution 小飞机网络加速官网 black holes milky way dark matter black hole 小飞机网络加速官网 R Cygni 小飞机加速器 e 0 小飞机加速器 1
    Chandra Twitter Updates
    Tweets by @chandraxray
    Latest Video on YouTube

    Recent Images on Flickr


    Tweet
    小飞机加速器Twitter小飞机网络加速官网小飞机加速器
    手机翻到国外免费app  谷歌挂了梯子怎么用  旋风加速官网版最新版下载地址  优途加速器官网最新版  风暴vp n官网  佛跳墙 电脑版