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ESA Hubble and Webb Space Telescopes

ESA Hubble and Webb Space Telescopes

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Official ESA account for the #Hubble Space Telescope and the James #Webb Space Telescope.

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Official ESA account for the #Hubble Space Telescope and the James #Webb Space Telescope. Find us on esahubble.org and esawebb.org

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https://esahubble.org/
所属行业
研究服务
规模
11-50 人
总部
Baltimore
类型
非营利机构

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  • 主要

    Space Telescope Science Institute

    US，Baltimore

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ESA Hubble and Webb Space Telescopes员工

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动态

  • Our ESA/Webb Picture of the Month features an Einstein ring: a rare cosmic phenomenon which occurs when light from a distant object is ‘lensed’ around a massive intermediate object, creating this familiar shape! ? This particular Einstein ring is made up of an elliptical galaxy (at the centre) and a spiral galaxy (wrapped around it). #WebbSeesFarther ?? ESA/Webb, NASA & CSA, G. Mahler, N. Bartmann (ESA/Webb) Acknowledgement: M. A. McDonald ?? Stellardrone - Twilight

  • ?? Our ESA/Webb Picture of the Month spies a spiral through a cosmic lens! ?? ?? This picture features a rare cosmic phenomenon – an Einstein ring. What appears a single, strangely shaped galaxy is actually two galaxies far apart. The foreground galaxy is at the centre of the image, the background galaxy wrapped around it. ?? Einstein rings occur when light from a very distant object is bent (‘lensed’) around a massive intermediate object by its gravity. When the two objects line up, the result is this distinctive shape! ? ?? The galaxy at the centre of this Einstein ring is an elliptical galaxy and the lensed galaxy wrapped around it is a spiral galaxy. Read more about it here: https://ow.ly/tBjb50VoMJl #WebbSeesFarther ?? ESA/Webb, NASA & CSA, G. Mahler Acknowledgement: M. A. McDonald

    • In the centre is an elliptical galaxy, seen as an oval-shaped glow around a small bright core. Around this is wrapped a broad band of light, appearing like a spiral galaxy stretched and warped into a ring, with bright blue lines drawn through it where the spiral arms have been stretched into circles. A few distant objects are visible around the ring on a black background.

  • ?? The NASA/ESA/CSA James Webb Space Telescope has seen an unexpected ‘first light’ ?? in one of the most distant galaxies yet discovered: JADES-GS-z13-1 ?? It is among the most ancient known galaxies, observed just 330 million years after the Big Bang. Using Webb’s unique infrared sensitivity to examine galaxies like this can help uncover the secrets of the early Universe. ?? A team of astronomers using Webb’s #NIRSpec identified powerful hydrogen emission from GS-z13-1. This caught them by surprise – it was far stronger than was thought possible at this stage, when the Universe was filled with a thick fog! ????? ?? The source is not yet known, but is likely to include some of the first stars from the dawn of the Universe. The team plans to observe GS-z13-1 further, hoping to learn more about the origin of this strange emission. Read more about it here: https://ow.ly/6U5C50VoFR8 #WebbSeesFarther ?? ESA/Webb, NASA & CSA, JADES Collaboration, J. Witstok, P. Jakobsen, A. Pagan (STScI), M. Zamani (ESA/Webb)

    • An area of deep space is covered by a scattering of galaxies in many shapes and in colours ranging from blue to whitish to orange, as well as a few nearby stars. A very small square is shown zoomed in, in a box to the left. In the centre a red dot, a faraway galaxy, is marked out by lines and labelled “Redshift (z)=13”, signifying its extreme distance. Two much larger galaxies are labelled “z=0.63” and “z=0.70”. The box is titled “JADES-GS-z13-1”.

  • ?? The NASA/ESA/CSA James Webb Space Telescope has imaged Neptune’s auroras for the first time! ?? Auroras occur when energetic particles, often from the Sun, are caught in a planet’s magnetic field and eventually strike the atmosphere. The energy released during these collisions ?? causes their famous glow. ?? There have been hints of auroras on Neptune in the past, but astronomers were never able to image and confirm them. Now, Webb’s near-infrared sensitivity has made observing this activity possible! ?? Neptune’s glowing aurora appears in the images, taken using Webb’s #NIRSpec, as splotches represented in cyan. They are located far from the planet’s northern and southern poles, thanks to its tilted magnetic field. Read more about it here: https://ow.ly/q6oR50VoFNF #WebbSeesFarther ?? NASA, ESA, CSA, STScI, Heidi Hammel (AURA), Henrik Melin (Northumbria University), Leigh Fletcher (University of Leicester), Stefanie Milam (NASA-GSFC)

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  • ?? The NASA/ESA/CSA James Webb Space Telescope has unmasked the Cosmic Tornado ??? ?? Herbig-Haro objects are outflows produced by jets from forming stars, creating shock waves as they fly into dense material. This one, Herbig-Haro 49/50 (HH 49/50), is also known as the Cosmic Tornado for its helical appearance. ?? Scientists used the #NIRCam and #MIRI instruments on Webb to examine HH 49/50 in detail. This revealed a mysterious fuzzy object at the tip of the ‘tornado’ as a perfectly positioned, more distant spiral galaxy! ?? This galaxy has a prominent central bulge represented in blue that shows the location of older stars, while reddish clumps within the spiral arms show the location of warm dust and groups of forming stars ?? Read more about it here: https://ow.ly/1SuE50Vn9Gl #WebbSeesFarther ?? NASA, ESA, CSA, STScI

    • Angled from the upper left corner to the lower right corner of the image is a conical shaped orange-red cloud known at Herbig-Haro 49/50. This feature takes up about three-fourths of the length of this angle. The upper left end of this feature has a translucent, rounded end. At this same location there is a background spiral shaped galaxy with a concentrated blue center that fades outwards to blend in with red spiral arms. The conical feature widens slightly from the rounded end at the upper right down to the lower right. The black background of space is clearer, speckled with some white stars and smaller, more numerous, fainter white galaxies.

  • Our ESA/Hubble Picture of the Week features a chance alignment in Lupus ?? The spiral galaxy NGC 5530 lies 40 million light-years away in the constellation Lupus ??? it is a ‘flocculent’ spiral, meaning that its spiral arms are patchy and indistinct. ?? The bright source near the centre of NGC 5530 is not an active black hole, but a star within our own galaxy! This chance alignment gives the appearance that the star is at the heart of this distant galaxy ?? ?? In September 2007, Australian amateur astronomer Robert Evans discovered a supernova in NGC 5530 by comparing its usual appearance to its appearance through a telescope. Incredibly, Evans has discovered more than 40 supernovae this way! Read more: https://ow.ly/fcsb50Vn95M ?? ESA/Hubble & NASA, D. Thilker

    • A spiral galaxy, seen tilted at a slight angle, on a dark background of space. It glows softly from its centre, throughout its disc out to the edge. The disc is a broad swirl of webs of dark reddish dust and sparkling blue patches where stars have formed. Atop the centre of the galaxy there is a star that appears very large and bright with four spikes emanating from it, because it is relatively close to Earth.

  • ?? The NASA/ESA/CSA James Webb Space Telescope has imaged gas giants 130 light-years away! ?? The young system HR 8799 has long been a target for planet formation studies. Still hot from their formation ??? the planets within HR 8799 emit large amounts of infrared light that hints at their origins. ?? The #NIRCam instrument on Webb allowed astronomers to image some of the gas giants in the system directly – of the nearly 6,000 exoplanets discovered so far, few have been imaged directly. ?? Webb’s observations found that these planets are rich in carbon dioxide gas, which suggests that they formed like Jupiter and Saturn ?? slowly building their cores with heavier elements that attract gas. Read more about it here: https://ow.ly/kpe650Vi4x3 #WebbSeesFarther ?? NASA, ESA, CSA, STScI, W. Balmer (JHU), L. Pueyo (STScI), M. Perrin (STScI)

    • This image shows the planetary system HR 8799. The image background is black. At the centre of the image, there is a symbol representing a star labeled HR 8799. This star blocks the light from the host star. There are four exoplanets, which look like fuzzy dots, pictured in the image surrounding the star. Furthest from the star is a fuzzy, faint blue dot, labeled b, at the 10 o’clock position. At the one o’clock position, second furthest from the star is a blueish-white fuzzy dot labeled c. Just below that is an orange dot labeled e. At the four o’clock position, still nearby the star, is another fuzzy white dot labeled d.

  • On 24 April 1990, the NASA/ESA Hubble Space Telescope was sent into orbit, the first space telescope of its kind. 35 years later, it’s busier than ever! ESA/Hubble is celebrating its anniversary with a commemorative calendar, ‘Highlights from 35 Years of Discovery’ that features images from a selection of past anniversaries between 1998 and 2024, featuring nebulae, galaxies, and more. Read more: https://ow.ly/CHIH50ViRTf ?? ESA/Hubble

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