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Ioannis Nerantzis / 67 items

N 1.6K B 769.2K C 73 E Jun 7, 2022 F Sep 6, 2022
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What’s that caught in our Webb? A giant space tarantula!

Take a moment to stare into thousands of never-before-seen young stars in the Tarantula Nebula. The James Webb Space Telescope reveals details of the structure and composition of the nebula, as well as dozens of background galaxies.

Stellar nursery 30 Doradus gets its nickname of the Tarantula Nebula from its long, dusty filaments. Located in the Large Magellanic Cloud galaxy, it’s the largest and brightest star-forming region near our own galaxy, plus home to the hottest, most massive stars known.

The center of this image, taken by Webb’s Near-Infrared Camera instrument (NIRCam), has been hollowed out by the radiation from young, massive stars (seen in sparkling pale blue). Only the densest surrounding areas of the nebula resist erosion, forming the pillars that appear to point back towards the cluster of stars in the center. The pillars are home to still-forming stars, which will eventually leave their dusty cocoons and help shape the nebula.

Why is this nebula interesting to astronomers? Unlike in our Milky Way, the Tarantula Nebula is producing new stars at a furious rate. Though close to us, it is similar to the gigantic star-forming regions from when the universe was only a few billion years old, and star formation was at its peak — a period known as “cosmic noon.” Since the Tarantula is close to us, it is easy to study in detail to help us learn more about the universe’s past.

Read more: www.nasa.gov/feature/goddard/2022/a-cosmic-tarantula-caug...

Image Credit: NASA, ESA, CSA, STScI, Webb ERO Production Team

Image description: A space image captured by the Webb telescope. Fluffy tan-colored nebula clouds, with rust-colored highlights, surround a black central area. Within that area, the focal point of the image is one large yellow star with eight long thin points. To the right of this star is a bright star cluster in an oval shape. The stars within the cluster look like tiny pale blue sparkles. The cluster is more densely packed at its core and scatters outward. Towards the bottom of the image, multiple arms appear to spiral out of a cloudy tan knob, resembling a spider or a squid structure. Other blue and yellow eight-pointed stars, as well as distant galaxies, are dotted throughout the image.


Tags:   Tarantula Nebula 30 Doradus 30 Dor NGC 2070 jwst webb james webb space telescope recentbestof topImages bestof

N 1.3K B 797.5K C 60 E Aug 22, 2022 F Aug 22, 2022
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With giant storms, powerful winds, auroras, and extreme temperature and pressure conditions, Jupiter has a lot going on. Now, NASA’s James Webb Space Telescope has captured new images of the planet. Webb’s Jupiter observations will give scientists even more clues to Jupiter’s inner life.

“We hadn’t really expected it to be this good, to be honest,” said planetary astronomer Imke de Pater, professor emerita of the University of California, Berkeley. De Pater led the observations of Jupiter with Thierry Fouchet, a professor at the Paris Observatory, as part of an international collaboration for Webb’s Early Release Science program. Webb itself is an international mission led by NASA with its partners ESA (European Space Agency) and CSA (Canadian Space Agency). “It’s really remarkable that we can see details on Jupiter together with its rings, tiny satellites, and even galaxies in one image,” de Pater said.

This image comes from the observatory’s Near-Infrared Camera (NIRCam), which has three specialized infrared filters that showcase details of the planet. Since infrared light is invisible to the human eye, the light has been mapped onto the visible spectrum. Generally, the longest wavelengths appear redder and the shortest wavelengths are shown as more blue. Scientists collaborated with citizen scientist Judy Schmidt to translate the Webb data into images.

In this wide-field view, Webb sees Jupiter with its faint rings, which are a million times fainter than the planet, and two tiny moons called Amalthea and Adrastea. The fuzzy spots in the lower background are likely galaxies “photobombing” this Jovian view.

“This one image sums up the science of our Jupiter system program, which studies the dynamics and chemistry of Jupiter itself, its rings, and its satellite system,” Fouchet said. Researchers have already begun analyzing Webb data to get new science results about our solar system’s largest planet.

Read more about the image and how it was processed by Judy Schmidt here: blogs.nasa.gov/webb/2022/08/22/webbs-jupiter-images-showc...

Image credit: Webb NIRCam composite image (two filters) of Jupiter system, unlabeled (top) and labeled (bottom). Credit: NASA, ESA, CSA, Jupiter ERS Team; image processing by Ricardo Hueso (UPV/EHU) and Judy Schmidt.

Image description: A wide field view showcases Jupiter in the upper right quadrant. The planet’s swirling horizontal stripes are rendered in blues, browns, and cream. Electric blue auroras glow above Jupiter’s north and south poles. A white glow emanates out from the auroras. Along the planet’s equator, rings glow in a faint white. These rings are one million times fainter than the planet itself! At the far left edge of the rings, a moon appears as a tiny white dot. Slightly further to the left, another moon glows with tiny white diffraction spikes. The rest of the image is the blackness of space, with faintly glowing white galaxies in the distance.


Tags:   jwst webb james webb space telescope telescope nasa hubble hubble's successor space recentbestof topImages bestof

N 389 B 755.0K C 12 E Aug 22, 2022 F Aug 22, 2022
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With giant storms, powerful winds, auroras, and extreme temperature and pressure conditions, Jupiter has a lot going on. Now, NASA’s James Webb Space Telescope has captured new images of the planet. Webb’s Jupiter observations will give scientists even more clues to Jupiter’s inner life.

“We hadn’t really expected it to be this good, to be honest,” said planetary astronomer Imke de Pater, professor emerita of the University of California, Berkeley. De Pater led the observations of Jupiter with Thierry Fouchet, a professor at the Paris Observatory, as part of an international collaboration for Webb’s Early Release Science program. Webb itself is an international mission led by NASA with its partners ESA (European Space Agency) and CSA (Canadian Space Agency).

This image comes from the observatory’s Near-Infrared Camera (NIRCam), which has three specialized infrared filters that showcase details of the planet. Since infrared light is invisible to the human eye, the light has been mapped onto the visible spectrum. Generally, the longest wavelengths appear redder and the shortest wavelengths are shown as more blue. Scientists collaborated with citizen scientist Judy Schmidt to translate the Webb data into images.

In the standalone view of Jupiter, created from a composite of several images from Webb, auroras extend to high altitudes above both the northern and southern poles of Jupiter. The auroras shine in a filter that is mapped to redder colors, which also highlights light reflected from lower clouds and upper hazes. A different filter, mapped to yellows and greens, shows hazes swirling around the northern and southern poles. A third filter, mapped to blues, showcases light that is reflected from a deeper main cloud.

The Great Red Spot, a famous storm so big it could swallow Earth, appears white in these views, as do other clouds, because they are reflecting a lot of sunlight.

“The brightness here indicates high altitude – so the Great Red Spot has high-altitude hazes, as does the equatorial region,” said Heidi Hammel, Webb interdisciplinary scientist for solar system observations and vice president for science at AURA. “The numerous bright white ‘spots’ and ‘streaks’ are likely very high-altitude cloud tops of condensed convective storms.” By contrast, dark ribbons north of the equatorial region have little cloud cover.

Read more about the image and how it was processed by Judy Schmidt here: blogs.nasa.gov/webb/2022/08/22/webbs-jupiter-images-showc...

Image credit: Webb NIRCam composite image of Jupiter from three filters and alignment due to the planet’s rotation. Credit: NASA, ESA, CSA, Jupiter ERS Team; image processing by Judy Schmidt.

Image description: Jupiter dominates the black background of space. The image is a composite, and shows Jupiter in enhanced color, featuring the planet’s turbulent Great Red Spot, which appears white here. The planet is striated with swirling horizontal stripes of neon turquoise, periwinkle, light pink, and cream. The stripes interact and mix at their edges like cream in coffee. Along both of the poles, the planet glows in turquoise. Bright orange auroras glow just above the planet’s surface at both poles.

Tags:   jwst webb james webb space telescope telescope nasa hubble hubble's successor space recentbestof topImages bestof

N 300 B 927.6K C 16 E Jun 20, 2022 F Aug 2, 2022
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This image of the Cartwheel and its companion galaxies is a composite from Webb's Near-Infrared Camera (NIRCam) and Mid-Infrared Instrument (MIRI), which reveals details that are difficult to see in the individual images alone.

This galaxy formed as the result of a high-speed collision that occurred about 400 million years ago. The Cartwheel is composed of two rings, a bright inner ring and a colorful outer ring. Both rings expand outward from the center of the collision like shockwaves.

However, despite the impact, much of the character of the large, spiral galaxy that existed before the collision remains, including its rotating arms. This leads to the "spokes" that inspired the name of the Cartwheel Galaxy, which are the bright red streaks seen between the inner and outer rings. These brilliant red hues, located not only throughout the Cartwheel, but also the companion spiral galaxy at the top left, are caused by glowing, hydrocarbon-rich dust.

In this near- and mid-infrared composite image, MIRI data are colored red while NIRCam data are colored blue, orange, and yellow. Amidst the red swirls of dust, there are many individual blue dots, which represent individual stars or pockets of star formation. NIRCam also defines the difference between the older star populations and dense dust in the core and the younger star populations outside of it.

Webb's observations capture the Cartwheel in a very transitory stage. The form that the Cartwheel Galaxy will eventually take, given these two competing forces, is still a mystery. However, this snapshot provides perspective on what happened to the galaxy in the past and what it will do in the future.

Image credit: NASA, ESA, CSA, STScI

Image description:

A large galaxy on the right, with two much smaller companion galaxies to the left at 10 o’clock and 9 o’clock. The large galaxy resembles a speckled wheel, with an oval outer ring and a small, off-center inner ring. The outer ring contains pink plumes like wheel spokes, with dusty blue regions in between. The pink areas are silicate dust, while the blue areas are pockets of young stars and hydrocarbon dust. The inner ring is smoother, filled in with a more uniform pale pink. This smaller ring is interwoven with thin, orange-pink threads. On the galaxy's right edge, a bright white star with 8 diffraction spikes shines. The two companion galaxies to the left, one above the other, are about the same size and both spiral galaxies. The galaxy above is a reverse S shape but similar in coloring and texture as the large ring galaxy. The galaxy below is smoother and largely white, with a blue tinge. The background is black and full of more distant, orange-red colored galaxies of various sizes.

Tags:   Cartwheel Galaxy ESO 350-40 AM0035-335

N 245 B 848.6K C 6 E Jun 20, 2022 F Aug 2, 2022
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This image of the Cartwheel and its companion galaxies is from Webb’s Near-Infrared Camera (NIRCam).

This galaxy formed as the result of a high-speed collision that occurred about 400 million years ago. The Cartwheel is composed of two rings, a bright inner ring and a colorful outer ring. Both rings expand outward from the center of the collision like shockwaves.

However, despite the impact, much of the character of the large, spiral galaxy that existed before the collision remains, including its rotating arms.

In this near-infrared image, NIRCam data are colored blue, orange, and yellow. NIRCam also defines the difference between the older star populations and dense dust in the core and the younger star populations outside of it.

Webb’s observations capture the Cartwheel in a very transitory stage. The form that the Cartwheel Galaxy will eventually take, given these two competing forces, is still a mystery. However, this snapshot provides perspective on what happened to the galaxy in the past and what it will do in the future.

Image credit: NASA, ESA, CSA, STScI

Image description:

A large galaxy on the right, with two smaller companion galaxies to the left 10 o’clock & 9 o’clock. The large galaxy dominates the frame. It resembles a ghostly wheel with diffuse blue-white spokes revolving around a glowing core. The outer edges of the wheel are faint dots of yellow, pink and blue, with some gaps in between. The bottom right edge is marked by a large 8-pointed star. The smaller galaxies on the left look very different from each other. The top galaxy appears to be constructed of the same yellow, pink, & blue speckles as the larger galaxy’s outer ring, with a similar light blue core. Its shape is less recognizable as a spiral; it looks like a chaotic oval smattering of dots. The galaxy below it glows blueish, but its nucleus and spiral structure are apparent, and we are looking at it face-on. Sprinkled in the black background are specks of pink, blue, yellow & orange, which are distant galaxies.

Tags:   Cartwheel Galaxy ESO 350-40 AM0035-335


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