➀ NASA's Voyager 2 spacecraft, which flew by Uranus in 1986, provided data that has puzzled scientists for decades; ➁ New research suggests that the unusual conditions observed by Voyager 2 were due to a cosmic coincidence involving space weather; ➂ The findings may indicate that the five major moons of Uranus are geologically active.

➀ The James Webb Space Telescope observed Ariel, one of Uranus' moons, and found evidence suggesting it may have an underground liquid ocean. ➁ Carbon dioxide ice was detected on Ariel's surface, which is unexpected due to Uranus' distance from the sun. ➂ The presence of carbon dioxide ice and carbonates on Ariel's surface suggests geological activity and possible interaction with an underground ocean.