NASA's James Webb Space Telescope has captured a captivating image of Neptune, the ringed ice giant, in sharp near-infrared detail.
This distant world, located at a staggering distance of approximately 30 times farther from the sun than Earth, is known for its distinct appearance.
Ethereal Dark Visage of Neptune
The image reveals Neptune's ethereal and dark visage, attributed to the presence of atmospheric methane that absorbs infrared light.
Amidst the darkness, high-altitude clouds, which extend beyond the reach of Neptune's methane-rich atmosphere, are clearly visible in stark contrast, according to NASA.
One of Neptune's prominent features is its largest moon, Triton, which glimmers brightly due to its coating of frozen nitrogen.
Triton graces the upper left part of the image, adorned with the characteristic diffraction spikes associated with the Webb telescope. The image also showcases seven out of Neptune's 14 known moons within its field of view.
The faint rings encircling Neptune create a striking pattern in this unique space-based planetary portrait. This detailed view of Neptune's complex ring system is particularly significant since the Voyager 2 spacecraft last visited Neptune in August 1989.
Read Also: NASA's James Webb Space Telescope Sees an Enchanting View of the Iconic Ring Nebula
NASA James Webb Space Telescope Captures Farthest Star Ever Detected
In a related development, NASA's James Webb Space Telescope has disclosed new insights into the farthest star ever detected, the "Earendel," located in the remote expanse of the universe.
Initially observed by the Hubble Space Telescope during the initial billion years after the Big Bang, Earendel has now been unveiled in unprecedented detail using the Near-Infrared Camera (NIRCam) instrument aboard Webb.
The telescope's observations reveal Earendel as a massive B-type star, surpassing the sun's temperature and luminosity by more than twofold. This remarkable discovery was made possible through a phenomenon known as gravitational lensing, which arises from the bending of light caused by a gravitational field.
The massive galaxy cluster WHL0137-08 played a crucial role in creating this lensing effect, functioning as a magnifying glass that enabled the telescopes to detect Earendel despite its immense distance.
Earendel's location within the Sunrise Arc galaxy adds to the intrigue. While gravitational lensing typically results in multiple appearances of various features within the target galaxy, Earendel stands as a solitary point of light in the infrared imagery provided by Webb.
This uniqueness led astronomers to deduce that Earendel's brightness is magnified by a staggering factor of at least 4,000, indicating its relatively small size.
With its detection a mere billion years after the Big Bang, Earendel now claims the title of the most distant star ever spotted. This revelation breaks the prior record held by a star observed by Hubble, which existed around 4 billion years post-Big Bang.
The utilization of NASA's James Webb Space Telescope has thus not only granted us a vivid glimpse of Neptune's enigmatic features but also extended our cosmic vision to unveil the farthest reaches of the universe.
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