Tag Archives: "STScI"

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An image of a nearby star and its vicinity. The star itself has been blocked out and its bright light has been removed, appearing black. A dashed circle with a star symbol at the center of the image marks the star’s location. A fuzzy blue disk surrounds the star. An orange spot, near the star and inside this disk around 2 o’clock, is identified as a planet orbiting the star. A fainter orange spot at the lower left edge marks a distant star.

Likely Saturn-Mass Planet Imaged by NASA Webb Is Lightest Ever Seen

Astronomers using NASA’s James Webb Space Telescope have captured compelling evidence of a planet with a mass similar to Saturn ...
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A three-panel image, two at the top and one stretched across the bottom. At the top of the image is the title “Three Future Scenarios for Milky Way and Andromeda Encounter.” This title is extended over all three panels. In the top left panel, two spiral galaxies are widely separated against the black background of space. Beneath these galaxies are the words “Galaxies bypass at 1 million light-year separation.” In the top right panel, two face-on spiral galaxies are close together. Their spiral arms appear stretched toward each other. At the bottom of this panel are the words “At 500,000 light-years, dark matter provides friction that brings galaxies to a close encounter.” In the bottom panel, two spiral galaxies have collided, resulting in a broad X-shaped patch of milky white. Mottled clouds of dark brown dust are superimposed. At the bottom of this panel are the words “A 100,000 light-year separation leads to a collision.”

Apocalypse When? Hubble Casts Doubt on Certainty of Galactic Collision

As far back as 1912, astronomers realized that the Andromeda galaxy -- then thought to be only a nebula -- was headed ...
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Three panels, each showing a close-up near-infrared image of Jupiter’s north pole, in shades of orange. The planet is mostly dark. Thick, bright arcs and rings caused by auroras cover the pole. The center and right panels each show the aurora a few minutes later in time, as Webb’s field of view slowly scans over the planet.

NASA’s Webb Reveals New Details, Mysteries in Jupiter’s Aurora

NASA’s James Webb Space Telescope has captured new details of the auroras on our solar system’s largest planet. The dancing ...
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Six-panel illustration marked "Artist's Concept." The upper left panel shows the silhouette of supermassive black hole that is adrift inside a galaxy. The middle upper panel shows a yellow star drifting near the black hole. The three following panels show the star being shredded in bright white concentric streamers followed by a white explosion. the bottom right panel is an external view of the galaxy showing a bright white star-like object that is the site if the explosion as viewed in X-rays and visible light.

NASA’s Hubble Pinpoints Roaming Massive Black Hole

Lurking 600 million light-years away, within the inky black depths between stars, there is an invisible monster gulping down any ...
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What looks like a single large, bright star but is two shines with bright purple diffraction spikes at the center of a large, diffuse cylinder of gas and dust that is tipped to the right. At the center is a bright pink clumpy cloud that takes up about 25% of the view. The pink region has some holes. Beyond that are two large rings tipped at a 60-degree angle that mark the ends of the cylinder. They appear joined at top left and bottom right. The edges form shallow V-shapes that go inward. The rings appear orange at top left and bottom right, and are blue at bottom and center right. There is diffuse orange material around the body. The black background of space is speckled with tiny stars and galaxies mostly in blues and yellows. A bigger blue star with spikes is just below and to the left of the central stars, but it is slightly smaller. Areas Webb did not observe appear black along the top edges, a thin vertical near the nebula at top left, and at the bottom left and right corners.

With NASA’s Webb, Dying Star’s Energetic Display Comes Into Full Focus

Gas and dust ejected by a dying star at the heart of NGC 1514 came into complete focus thanks to ...
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Graphic titled “Hubble Space Telescope – Observations of Uranus,” with 16 images of Uranus, arranged in a 4 by 4 grid showing changes in appearance of Uranus as observed by Hubble between 2002 and 2022. Columns are labeled with observation year, from left to right: 2002; 2012; 2015; and 2022. Rows are labeled from top to bottom: visible light; visible and near infrared; aerosols/haze; and methane depletion. In the visible light images in the top row, Uranus appears blue-green with faint vertical bends of slightly lighter or darker color. In the visible and near infrared images in the second row, Uranus is very colorful, with deep neon blue to neon green bands within an orange-red glow that outlines the edge of the planet. In the two bottom rows of images, Uranus appears in grayscale, with vertical bands ranging from dark gray to almost white. All four rows of images show changes from observation to observation (left to right). For a given year, all four images in the column show similar banding patterns.

20-Year Hubble Study of Uranus Yields New Atmospheric Insights

The ice-giant planet Uranus, which travels around the Sun tipped on its side, is a weird and mysterious world. Now, ...
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A two-panel horizontal image. On the left is Neptune, as seen from the Hubble Space Telescope. It is a blue circle, tilted about 25 degrees to the left. There are white smudges at 7 o’clock and just above 5 o’clock. At the right is an opposing view of the planet, using data from Hubble and Webb. It is a multi-hued blue orb. There are white smudges in the same spots as the image on the left, but also at the center of the planet and at the top. There are cyan smudges vertically along the right side, with the top of the smudging more translucent than the bottom.

NASA’s Webb Captures Neptune’s Auroras For First Time

For the first time, NASA’s James Webb Space Telescope has captured bright auroral activity on Neptune. Auroras occur when energetic ...
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A large, black circle representing a black hole occupies the right third of the frame in this illustration. Thick, clumpy orange streaks arc above and below it, essentially surrounding it. The top arc extends down to the lower left and then curves around in front of the black hole to form a disk that is tilted toward the viewer. Near the inner edge of the disk, several bright, whiter spots have blue filaments looping above them, representing flares. The words “Artist’s Concept” appear in the bottom left corner in gray.

Webb Reveals Rapid-Fire Light Show From Milky Way’s Central Black Hole

The supermassive black hole at the center of the Milky Way appears to be having a party, complete with a ...
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A large galaxy is at center, and a significantly smaller galaxy is to its left. The large galaxy, nicknamed the Bullseye, is mostly face-on, but the top appears slightly tilted away. It has several rings. Its circular core is bright white at the very center, but light yellow overall. Going outward, there are gaps between the rings. The core is surrounded by two slightly lighter yellow rings, which also appear to be overlapping. The next ring is slightly more transparent and yellow. The two or three rings that are farther out are bluer, sometimes with blue clumps. The widest ring is also blue, but also the most transparent. At 9 o’clock is a small dwarf galaxy. It is about the same size as the yellow core of the Bullseye. The dwarf galaxy is blue, with many dots. It looks like the edge of the Bullseye might touch the dwarf galaxy. Both galaxies are set on the black background of space, which is dotted with a range of galaxies in different shapes, colors, and sizes, along with one foreground star at left.

Straight Shot: Hubble Investigates Galaxy with Nine Rings

NASA's Hubble Space Telescope has captured a cosmic bullseye! The gargantuan galaxy LEDA 1313424 is rippling with nine star-filled rings ...
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NASA's Hubble Traces Hidden History of Andromeda Galaxy

NASA’s Hubble Traces Hidden History of Andromeda Galaxy

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the ...
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Three rows show Webb images of the same region taken on three different dates. The top row is labeled August 19, 2024. The middle row is labeled September 16, 2024. The bottom row is labeled September 30, 2024. Each row shows two images split by a vertical black bar where there is no data. Each image is speckled with dozens of white stars, some showing Webb’s signature 8-point diffraction spikes, against the black background of space. The images also show tightly packed, glowing red filaments that resemble muscle fibers or wood grain. While the background stars are the same in every row, the filaments change noticeably. In the top row, the filaments extend horizontally from upper left to lower right. In the middle and bottom rows, the filaments extend from lower left to upper right, and seem to shift slightly downward in position, with the last the lowest.

NASA’s Webb Reveals Intricate Layers of Interstellar Dust, Gas

Once upon a time, the core of a massive star collapsed, creating a shockwave that blasted outward, ripping the star ...
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A frame split horizontally down the middle. At left is a galaxy cluster and background galaxies, showing thousands of overlapping objects at various distances. The background is black. The galaxies’ colors vary, including white, pink, orange, and blue. Most galaxies appear as ovals or dots. Just above center is a bright white oversized oval, a supergiant elliptical galaxy. Around it are many thin, long orange or pink arcs. These are background galaxies that appear stretched and distorted. To the bottom right is the outline of a small box. On the right side is a zoomed in view of this area. There are two smaller circular outlines flanking a larger central oval outline, labeled Firefly Sparkle galaxy. Within it is a long line, pointing from bottom left to top right with 10 circular star clusters in pink, purple, and blue. The circled galaxy to the bottom left is labeled Companion 1 and looks like a bright red dot. At top right, the circled galaxy labeled Companion 2 is lighter red and surrounded by a red disk.

Found: First Actively Forming Galaxy as Lightweight as Young Milky Way

For the first time, NASA’s James Webb Space Telescope has detected and “weighed” a galaxy that not only existed around ...
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