Thousands of distant primordial galaxies of various shapes and sizes glow in infrared light in this newly released image from the Hubble Space Telescope.
the biggest galaxy Its age is around 13 billion years, several hundred million years later big explosion. By viewing these galaxies in ultraviolet light, scientists can detect the chemicals they contain—essential information for understanding how galaxies form and evolve. But there is a problem with this method: this primordial ultraviolet light is absorbed before it reaches us.
But scientists can see many, many galaxies slightly smaller than that, which are 11 billion years old. This is what astronomers do with Hubble Space Telescopewhich helped create these cropped images of very old and very distant galaxies.
Related: The largest ever infrared image from the Hubble Space Telescope is nearly 10 billion years old
The image is part of a recent survey called UVCANDELS. During about 10 days from the time of observation, Hubble imaged about 140,000 galaxies. Some of them are seen in the newly released images – many types of galaxies, seen from different angles.
UVCANDELS provides “unique insight into ongoing star formation in galaxies near and far,” said Shen Wang, an astronomer at Caltech who presented his findings June 14 at the American Astronomical Society conference in California.
UVCANDELS is a supplement to another scan, CANDELS, which scans visible infrared and red light. Hubble recovered, with visible ultraviolet and violet light, parts of the sky Kandels examined, including those in the newly released image, known as the Extended Groth Strip. By combining layers from the two studies, the scientists created this new image.
The survey allowed scientists to glimpse into the early era of the universe known as reionization. During this era, which began the formation of the first galaxies, the first light sources began to penetrate the cosmic veil, ending The dark ages of the universe.“
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