2023-08-16 01:09:59
This image from NASA’s James Webb Space Telescope shows the rising arc of the sun and, in this galaxy, the farthest star ever detected. NASA, ESA, CSA, D. Coe (STScI/AURA for ESA, Johns Hopkins University), B. Welch (NASA’s Goddard Space Flight Center, University of Maryland, College Park); Zed Levi NASA’s James Webb Space Telescope captured a new, revealing color image of Eärendel, the farthest star ever detected. Earendelle was first discovered by the Hubble Space Telescope last year. NASA said in a statement that the temperature is twice as hot as the sun and “a million times brighter.” Press release last week. Eärndel is a no-light spot with high blue diffraction in the center of the image. Eärendel appears as a red dot in the Sagittarius galaxy. NASA, ESA, CSA, D. Coe (STScI/AURA for ESA; Johns Hopkins University), B. Welch (NASA Goddard Space Flight Center; University of Maryland, College Park). Image processing: Z. Levay. The star actually appears as a red dot in the Sagittarius galaxy, a long, curved red line that appears below the diffraction peak at 5 o’clock. Earendel is so far away that its light has taken billions of years to reach Earth. As a result, the Webb image shows the star as it was a billion years after the Big Bang, or about 12.9 billion years ago. Since the universe has been steadily expanding since then, the star is currently located about 28 billion light-years from Earth, according to Espace.com. This expansion also expanded much of Eärndel’s light into wavelengths too long for the Hubble instruments to detect. However, Webb is 100 times more powerful than Hubble and has captured unprecedented colors of the distant star. These colors reveal that being the most distant star we’ve ever detected doesn’t make Eärendel alone – scientists think it has a companion star next to it. Massive stars like Earendel usually have companions, but Hubble hasn’t been able to spot one for Earendel. Using the Webb telescope’s powerful infrared vision, scientists think they can see, for the first time, a “cooler, redder companion star” next to Eärendel. Webb’s intense eye also revealed new star clusters and star-forming regions in the sunrise arc. Before Eärendel, the most distant star was observed 4 billion years after the Big Bang. Previous record-holder Hubble discovered this, too. In the case of Earendel, it helps that the gravity of a huge cluster of galaxies increases our view of the star. Ultimately, according to NASA, researchers hope to travel so far in space and time that they will discover one of the first generation of stars in the universe – stars that made hydrogen and helium. It eventually led to the emergence of life on Earth. Watch now: Popular Insider Inc. videos. Loading… “Infuriatingly Humble Internet Fans. Proud hooligans. web lover. businessman. Award-winning music attorney.”
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