The Webb Space Telescope has captured a stunning image of the planet Uranus. The image features dramatic rings and bright features in the planet’s atmosphere.
Saturn may be the planet best known for its spectacular rings in the solar system, but the icy giant Uranus also has a system of 13 nested rings. Eleven of his rings (9 main rings and two faint dust rings) are clearly visible in the latest spectacular images by NASA’s Webb Space Telescope. Future images should reveal the remaining two faint outer rings of his that were discovered by the Hubble Space Telescope in 2007.
“Uranus has never looked better. Really.” NASA tweeted“Only Voyager 2 and Keck (with adaptive optics) have imaged the planet’s faintest rings so far, and none were as clear as Webb’s first glimpse of the ice giant. This also highlights bright atmospheric features.”
As previously reported, the Webb telescope launched in December 2021 and began taking stunning images after months of suspenseful sunshade and mirror deployment. First, there were the deep-field images of the universe released last July. This was followed by images of the exoplanet’s atmosphere, the Southern Ring Nebula, an interacting cluster of galaxies called the Stephan Quintet, the Carina Nebula, and a star-forming region about 7,600 light-years away. These images reportedly brought astronomers to tears.
Last August, we received gorgeous images of Jupiter, including the polar aurora, its slender rings, and two small satellites of the gas giant, resulting from Jupiter’s strong magnetic field. This was followed a month later by a mosaic of images showing a panorama of star formation spanning her staggering 340 light-year length in the Tarantula Nebula. It also provided spectacular images of Neptune and its rings, which had not been observed directly since Voyager 2 flew by Neptune in 1989.
In October, the Webb telescope provided spectacular new images of the Pillars of Creation. This is perhaps Webb’s most famous image taken in 1995 by the Hubble Space Telescope, Webb’s predecessor. New star formation is seen along with a stunning image of the hourglass-shaped dark clouds surrounding the protostar, an object known as L1527.
NASA/ESA/CSA/ST ScI
Uranus is the only planet in the solar system whose sides are tilted nearly 90 degrees as it orbits. Its unique tilt causes more extreme seasons: 42 years of sunlight and 42 years of darkness over the course of her 84 years of orbit around the Sun. by NASAThe image also captures a subtly brightening in the center of the planet’s north polar cap facing the Sun, and some bright clouds that are likely the result of storm activity. Data collected by the Webb telescope should help solve the mystery of why this polar cap appears in direct sunlight in the summer and disappears in the fall.
These enhanced polar features have never been seen before with other powerful telescopes like the Hubble and Keck Observatories. However, Webb’s primary imaging device, a near-infrared camera (NIRCam), is well suited for capturing images of very faint objects. NIRCam’s coronagraph blocks light from brighter nearby objects. This is similar to protecting your eyes from bright sunlight so that you can focus on the scene in front of you. As such, NIRCam boasts higher sensitivity and the ability to “see” longer wavelengths.
Listing image by NASA/ESA/CSA/STScI
