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A previously unidentified moon of Uranus discovered

The James Webb Space Telescope has identified a new small moon orbiting Uranus, bringing the planet's total moon count to 29.

✍️ By: Space Research Team 📅 Published: August 20, 2025 ⏱️ Read Time: 4 min read
A previously unidentified moon of Uranus discovered - Science News

1.Webb Telescope Discovery

The James Webb Space Telescope has successfully discovered a new small moon orbiting around Uranus. This finding adds to our understanding of the complex Uranian system and demonstrates the exceptional capabilities of Webb's advanced instruments.

2.Size and Detection

According to an announcement made by NASA yesterday (19th), this moon has a diameter of 10 kilometers. It was identified during observations made by the Webb telescope using its near-infrared camera in February of last year.

3.How It Remained Hidden

Scientists believe that due to its extremely small size, it managed to remain hidden even during Voyager 2's close flyby that occurred 40 years ago. This highlights the significant improvement in our observational capabilities with modern space telescopes.

4.Uranus's Moon Collection

Uranus had 28 previously identified moons, named after characters from Shakespeare to Alexander Pope. About half of them are small in size and orbit close to the planet. With this newly discovered moon that has not yet been named, the number of Uranus's moons increases to 29.

5.Naming Conventions

Following tradition, the new moon will likely be named after a character from the works of Shakespeare or Alexander Pope. The International Astronomical Union is expected to begin the formal naming process in the coming months.

6.Future Observations

Scientists plan to conduct follow-up observations to better understand the new moon's orbit, composition, and origin. The James Webb Space Telescope will continue to monitor the Uranian system, potentially revealing more about this distant ice giant and its satellite system.

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