Chandra Observatory認証済みアカウント

@chandraxray

Chandra's ongoing mission is to study the X-ray Universe. Operated for NASA by Smithsonian Astrophysical Observatory. Legal:

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chandra.si.edu
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  1. 1月6日

    ❄️Today Chandra is studying a cluster of stars in the constellation Monoceros, the unicorn. Nearby in the sky, star-forming cloud NGC 2264 reveals a group of young stars that resembles the pattern of a snowflake. You guessed it! Scientists nicknamed it the "Snowflake Cluster."

    Newborn stars, hidden behind thick dust, appear as pink and red specks toward the center of this infrared image. The stars appear to have formed in regularly spaced intervals along linear structures in a configuration that resembles the spokes of a wheel or the pattern of a snowflake.
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  2. 1月5日

    2/2 ...sending shock waves through the system. The shock waves passed through a dormant cloud of electrons, compressing the cloud & re-energizing the electrons, causing the cloud to shine once again in radio. Learn more at:

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  3. 1月5日

    The phoenix is a mythical golden bird that lives for hundreds of years. When it grows old and frail, it bursts into flames and is reborn from the ashes to begin the cycle again. This "radio phoenix" emerged when one cluster of galaxies slammed into another...1/2

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    1月4日

    There are many ways to explore the cosmos. ’s Tactile Universe provides materials that are accessible to people who are blind or visually impaired through Braille, tactile techniques, 3D printing, audio, and more:

    A student reading Braille a part of NASA’s Chandra X-ray Observatory Tactile Universe material.
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  5. 1月4日

    Have you ever wondered where the "X" in "X-ray" comes from?🤔 When German physicist Wilhelm Roentgen discovered a new form of radiation in 1895, he called it X-radiation because he didn't know what it was. Yes, it's as simple as that!

    This infographic shows the electromagnetic spectrum, spanning a broad spectrum from very long radio waves to very short gamma rays. The graphic depicts the different types of waves, the wavelengths of light, as well as what types of light can pass through Earth's atmosphere. For more information, including a larger version of this graphic, visit: https://science.nasa.gov/ems/01_intro
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  6. 1月3日

    El Gordo ("the fat one" in Spanish) is the most massive cluster of galaxies known. Weighing in at roughly 3 million billion times the mass of our Sun, it's made up of two galaxy clusters running into each other at several million miles per hour.

    This is a composite image of X-ray and optical light with dark matter (derived mass) mapped out in blue. Because dark matter doesn't emit any radiation, astronomers instead precisely measure how its gravity warps the images of far background galaxies like a funhouse mirror. This allows them to come up with a mass estimate for the cluster. Chandra's X-ray data are shown in pink and these have been overlaid on optical data from Hubble that shows the individual galaxies in the cluster as well as stars in the field of view.
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  7. さんがリツイート
    2021年12月28日

    The Observatory has provided some of the most amazing photos of space in 2021. Take a look back at some of the most breathtaking photos that you may have missed this year:

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  8. 2021年12月27日

    ✨Many new stars, some very massive, are forming in NGC 1929. Massive stars produce intense radiation, expel matter at high speeds, and race through their evolution to explode as supernovas. Winds & supernova shock waves carve out huge superbubbles in the surrounding gas.

    Stars in blue, red, and yellow are present throughout a wispy nebula that contains a few huge cavities. X-rays from NASA's Chandra X-ray Observatory (blue) show hot regions created by winds and shocks, while infrared data from NASA's Spitzer Space Telescope (red) outline where the dust and cooler gas are found. The optical light from the 2.2m Max-Planck-ESO telescope (yellow) in Chile shows where ultraviolet radiation from hot, young stars is causing gas in the nebula to glow.
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  9. さんがリツイート
    2021年12月25日

    LIVE NOW: Watch , the world’s most powerful space telescope, launch on a mission to . 🚀 With its 7:20am ET (12:20 UTC) liftoff, Webb will usher in a new era of astronomy. Have questions? Drop them below.

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  10. 2021年12月23日

    DEM L238 is a supernova remnant located approximately 160,000 light years from Earth in the constellation Dorado. This stellar ornament, seen here in X-ray light from Chandra & optical light from , spans about 125 light years from side to side.

    A mostly round reddish cloud with a cluster of other colors in the lower, right-hand quadrant. Chandra data (yellow, green and bright red) show multimillion-degree gas and Hubble optical data show cooler gas in the system, near the outer border of the remnant in red.
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  11. 2021年12月20日

    💥When the object we now call Supernova 1006 first appeared on May 1, 1006, it was far brighter than Venus and visible in the daytime for weeks! This is the lingering debris field produced by that white dwarf star explosion, still expanding at over 11 million kilometers per hour.

    A mostly spherical supernova remnant filled with knots of material. Low, medium, and higher-energy X-rays are colored red, green, and blue respectively in this X-ray image from Chandra.
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  12. さんがリツイート
    2021年12月16日

    3.9 billion light-years from Earth, a pair of supermassive black holes may be behind an unusual set of cosmic cavities spotted in a gigantic galaxy cluster by :

    Two images of a distant galaxy cluster: on the left, an image in the visual realm, with orange and yellow galaxies scattered against a black background, and on the right, four black circles against a blue background
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  13. さんがリツイート
    2021年12月16日

    Scientists have found four enormous cavities at the center of a galaxy cluster using NASA’s Observatory. These cavities may have been caused by eruptions from two black holes that are only separated by 250 light years!! Learn MORE>>

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  14. 2021年12月16日

    ⚫⚫Two supermassive , separated by only about 250 light years, may have erupted and generated jets at close to the same time! More on the discovery:

    Two images of the same galaxy cluster, RBS 797, presented side-by-side. Left is an optical image from NASA’s Hubble Space Telescope. Right is an X-ray image from the Chandra X-ray Observatory. The optical image on features short streaks of golden light and golden stars of varying sizes set against a black background. While many of the stars resemble small roundish specks, others feature shafts of light bursting from brilliant, round cores. At the center of the image is a small fuzzy oval, surrounded by a glowing ring and a patch of golden haze. This is the large galaxy in the center of RBS 797. The X-ray image does not show the clustered galaxies, rather the hot gas that envelopes them. The image is royal blue in color, and somewhat mottled or cloudy. At the center is a pair of irregular black ovals, ringed with white and pale blue. These side-by-side shapes are X-ray cavities, thought to be a byproduct of eruptions from a giant black hole at the center of the cluster.
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  15. 2021年12月15日

    💥Today Chandra is studying a supernova in galaxy NGC 2770. Astronomers have observed thousands of these stellar explosions, but always after the fireworks were well underway. First spotted in 2008, SN 2008D marked the first time scientists caught a star in the act of exploding.

    This image contains 3 separate images of the galaxy taken on January 6th, January 12th, and February 10th, 2008. In the first image, no supernova is present. In the second image, a white dot-like source (the supernova) is present in the top, right-hand side of the galaxy. In the 3rd image, the white dot-like source appears to have grown in size and is more orange in coloration.
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  16. 2021年12月13日

    Today Chandra is studying a galaxy in Auriga, the Charioteer. Nearby in the sky is the Flaming Star Nebula. Located about 1,500 light years from Earth, this emission and reflection nebula spans about 5 light years.🤩

    Wispy clouds of gas and dust in shades of purple and dark pink surround the bluish star AE Aurigae. Many other stars are also present in the image.
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  17. 2021年12月10日

    Welcome to space, !😁 IXPE (pronounced "ix-pee" by the mission team) will study the polarization of X-rays & add to the information that telescopes like Chandra have gathered about the high-energy Universe. Watch with and to find out more!

    EZ Science - The X-ray Universe IXPERience
    NASA's Dr. Thomas Z and Smithsonian's Ellen Stofan share the excitement of the IXPE mission.
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  18. さんがリツイート
    2021年12月9日

    ⚫ Our galaxy’s central black hole has a leak! This supermassive black hole (which is over 4 million times more massive than our Sun, by the way!) looks like it still has the remains of a blowtorch-like jet dating back thousands of years. Read more:

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  19. 2021年12月8日

    🛰️When JKCS041 was discovered back in 2006, it smashed the record for the most distant galaxy cluster known. About 10.2 billion light years from Earth, it's observed as it was when the Universe was just one quarter of its current age. Why pretend on ?

    This X-ray and optical image of galaxy cluster JKCS041 show the distant group bathed in a halo of blue X-ray light. Several other galaxies are present in the image foreground.
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  20. さんがリツイート
    2021年12月8日

    is slated to launch in less than 24 hours 🚀 This new observatory will add a new dimension to our X-ray vision of the cosmos — polarization. IXPE is set to launch at 1:00 am EST, Thursday. Check out the schedule for launch coverage:

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