James Webb visualizes a galaxy 500 million light-years from Earth
NASA’s James Webb Space Telescope has peered into the chaos of the Cartwheel Galaxy, revealing new details about star formation and the galaxy’s central black hole. Webb’s powerful infrared gaze produced this detailed image of the Cartwheel and two smaller companion galaxies against a backdrop of many other galaxies. This image provides a new view of how the Cartwheel Galaxy has changed over billions of years.
The Cartwheel Galaxy, located about 500 million light-years away in the Sculptor constellation, is a rare sight. Its appearance, much like that of the wheel of a wagon, is the result of an intense event – a high-speed collision between a large spiral galaxy and a smaller galaxy not visible in this image. Collisions of galactic proportions cause a cascade of different, smaller events between the galaxies involved; the Cartwheel is no exception.
The collision most notably affected the galaxy’s shape and structure. The Cartwheel Galaxy sports two rings — a bright inner ring and a surrounding, colorful ring. These two rings expand outwards from the center of the collision, like ripples in a pond after a stone is tossed into it. Because of these distinctive features, astronomers call this a “ring galaxy,” a structure less common than spiral galaxies like our Milky Way.
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Discovering every star in the universe
This new Hubble image shows a cosmic creepy - crawly known as the Tarantula Nebula in infrared light. This region is full of star clusters , glowing gas , and thick dark dust. Created using observations taken as part of the Hubble Tarantula Treasury Project ( HTTP ) , this image was snapped using Hubble's Wide Field Camera 3 ( WFC3 ) and Advanced Camera for Surveys ( ACS ). The Hubble Tarantula Treasury Project ( HTTP ) is scanning and imaging many of the many millions of stars within the Tarantula , mapping out the locations and properties of the nebula's stellar inhabitants. These observations will help astronomers to piece together an understanding of the nebula's skeleton,viewing its starry structure.
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A heavenly castle in the sky
The NASA/ESA Hubble Space Telescope photograph, which is stranger than fiction, captures the chaotic activity atop a pillar of gas and dust, three light-years high, which is being eaten away by the brilliant light from nearby bright stars. The pillar is also being assaulted from within, as infant stars buried inside it fire off jets of gas that can be seen streaming from towering peaks.
Scorching radiation and fast winds (streams of charged particles) from hot newborn stars in the nebula are shaping and compressing the pillar, causing new stars to form within it. Streamers of hot ionised gas can be seen flowing off the ridges of the structure, and wispy veils of dust, illuminated by starlight, float around its peaks. The pillar is resisting being eroded by radiation.
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An atomic nebula in the sky
Photograph of a nuclear bomb test, codenamed Truckee, delivered by air 10 miles south of Christmas Island (now Kiritimati), Pacific Ocean, on June 9, 1962 during Operation Dominic I. The explosion had a force equivalent to 210 kilotons of TNT, about ten times that of the atomic bomb detonated over Nagaski, Japan, on August 9, 1945. Truckee was a prototype test of the W-58 warhead carried on the Polaris A-2 missile and deployed on ballistic missiles launched by submarines. With tensions rising over Ukraine, the world seems to be repeating Cold War history, as tensions rise, just like during the Cold War.
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