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/
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11-50 人
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Baltimore
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非营利机构

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    Space Telescope Science Institute

    US，Baltimore

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    ESA Hubble and Webb Space Telescopes

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    Our ESA/Hubble Picture of the Week features… what kind of astronomical object? ?? ?? This doesn’t look like the galaxies, nebulae, or clusters the NASA/ESA Hubble Space Telescope normally brings us images of. But it IS a spiral galaxy – we just happen to be viewing it from the side! ?? UGC 10043 is located roughly 150 million light-years from Earth, in the constellation Serpens. It is one of the somewhat rare spiral galaxies that are seen edge-on. ?? From this perspective, we see a dust lane overlying the disc, lights of star-forming regions in the arms, and a glowing ‘bulge’ at the centre. This is unusually large, possibly due to UGC 10043 siphoning material from a nearby dwarf galaxy. Read more: https://ow.ly/LJJN50U7R4x ?? ESA/Hubble & NASA, R. Windhorst, W. Keel

    • A spiral galaxy seen directly from the side, such that its disc looks like a narrow diagonal band across the image. A band of dark dust covers the disc in the centre most of the way out to the ends, and the disc glows around that. In the centre a whitish circle of light bulges out above and below the disc. The tips of the disc are a bit bent. The background is black and mostly empty.

  • The NASA/ESA Hubble Space Telescope has observed the aftermath of a smaller galaxy’s scrape with the Milky Way! ?? ?? The Large Magellanic Cloud (LMC), one of our nearest neighbours, crashed through the Milky Way’s gaseous halo, tearing away most of its own halo in the process. ?? Using Hubble to observe the background light of distant quasars, astronomers were able to measure the size of the LMC’s halo for the first time. They found that it was around 10 times smaller than the haloes of similar galaxies. ?? The LMC may be a bit worse for wear after its encounter with the Milky Way, but it is a survivor – it has held onto enough of its gas to keep forming new stars! ? Read more: https://ow.ly/RzG350U6TvP Artist's impression: NASA, ESA, R. Crawford (STScI)

    • A whitish, whirlpool-like galaxy at middle of top edge, and a tadpole-shaped structure sweeps from left to right across lower half. A label pointing to outer, left of galaxy reads “Earth.” Faint, purple haze labelled “Milky Way Halo” surrounds galaxy and stretches to graphic’s edges. The tadpole-shaped object is the Large Magellanic Cloud, or LMC, with its own halo and streaming tail. Semi-circular, progressively darker layers of purple labelled “LMC Halo” surround the LMC, which appears roughly circular, with a central, light yellow bar. Cloud-like features sprinkled with white specks surround this bar. Trailing the LMC is a large, tail-like feature labelled “Stream.” Three light blue lines point from the label “Earth” through the LMC’s halo, and to three corresponding quasars, which are off screen.

  • ? Attention #scicomm community! ? The 35th anniversary of the NASA/ESA Hubble Space Telescope is coming up, and ESA/Hubble is inviting proposals from organisations, institutions, and groups across Europe to celebrate! ?? Venues selected will receive a special collection of new Hubble images and promotion of their event on our website and social media channels. Read more: https://ow.ly/hlqj50U46hA ?? ESA/Hubble

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  • Our ESA/Hubble Picture of the Week features tangles in the queen’s hair! ?? ?? The pair of galaxies MCG+05-31-045 is found in the Coma cluster in the constellation Coma Berenices, named for the hair of Queen Berenice II of Ptolemaic Egypt. ?? The Coma cluster contains mostly elliptical galaxies. Many elliptical galaxies are formed in close encounters between galaxies that leave them almost devoid of gas, with ageing stars orbiting in uncoordinated circles. ?? It’s likely that a similar fate will befall MCG+05-31-045, although the process will take millions of years. Until then, Queen Berenice II will have to suffer the knots in her hair! Read more: https://ow.ly/qkiN50U4gbP ?? ESA/Hubble & NASA, R. J. Foley (UC Santa Cruz)

    • In the centre is a large, oval-shaped galaxy, with a shining, ringed core. Left of its centre is a second, smaller galaxy with two spiral arms. The pair of galaxies are close enough that they appear to be merging: a tail of material with a few glowing spots connects from one of the smaller galaxy’s spiral arms to the larger galaxy. Both are surrounded in a faint halo. Several stars can be seen around the pair.

  • Pan across a dramatic pair of galaxies! ?? The galaxies have only grazed each other so far, with IC 2163 (left) passing behind NGC 2007 (right) millions of years ago. The memory of this encounter can be seen in the shock fronts – where material from the galaxies may have slammed together – and possibly also in the distortion of their arms. The vibrant colours of this scene represent a combination of mid-infrared light from the NASA/ESA/CSA James Webb Space Telescope and visible and ultraviolet light from the NASA/ESA Hubble Space Telescope. ?? ESA/Webb, NASA, CSA, STScI, N. Bartmann (ESA/Webb) ?? Kevin MacLeod - Rising

  • Our ESA/Hubble Picture of the Week features a galactic light show! ?? ?? The barred spiral galaxy NGC 1672 has an impressive array of lights: billions of stars fill its disc, bubbles of hydrogen gas shine a striking red along its arms, and hot young stars emit powerful X-rays near the centre ?? ?? At the centre is an even more brilliant source of X-rays: an active galactic nucleus created by the heated accretion disc around NGC 1672’s black hole. ?? But a subtle highlight of this image is the most fleeting of these lights: the supernova SN 2017GAX. This is just visible here as a small green dot just below the crook of the right-hand spiral arm. Read more: https://ow.ly/L4Kv50TZ86B ?? ESA/Hubble & NASA, O. Fox, L. Jenkins, J. Lee and the PHANGS-HST Team

    • A spiral galaxy with an oval-shaped disc. Two large arms curve out away from the ends of the disc. The arms are traced by bright pink patches where stars are forming and by dark reddish threads of dust. The core is very bright and star-filled. Some large stars appear in front of the galaxy. Directly under the point where the right arm joins the disc, a fading supernova is visible as a green dot.
    • Two images of a spiral galaxy with an oval-shaped disc. It has a bright core and two large arms, containing bright pink patches where stars are forming and dark reddish threads of dust. The top image is labelled "2005". The bottom image is labelled "2017", and a greenish point on the disc's left side is circled and labelled "SN2017 GAX".

  • ?? Boo! This spooky pair of galaxies stares into the supreme cosmic darkness. ?? The pair’s macabre colours represent a combination of mid-infrared light from the NASA/ESA/CSA James Webb Space Telescope with visible and ultraviolet light from the NASA/ESA Hubble Space Telescope. ?? These galaxies have only grazed each other in the past, with the smaller spiral on the left (IC 2163) creeping behind the larger spiral on the right (NGC 2207) millions of years ago. ?? Over many millions of years to come, the galaxies may swing by one another repeatedly. It’s possible their cores and arms will meld, leaving behind completely reshaped arms and a cyclops-like ‘eye’ at the core. Read more about it here: https://ow.ly/qEVM50TWJ1F ?? NASA, ESA, CSA, STScI

    • Two spiral galaxies take up almost the entire view and appear to be overlapping. The galaxy at left, IC 2163, is smaller and more compact than the galaxy at right, NGC 2207. The black background of space is dotted with foreground stars and extremely distant galaxies.

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