However, Rapa Nui sits in the middle of the Pacific Ocean, where the weather is notoriously unpredictable. When we woke up at 3 a.m. in our hotel, the sky was completely covered in clouds.

But in 2014, NASA's Terra satellite captured a near-perfect circle of clouds hovering above the Pacific Ocean. Spotted a few thousand kilometers southwest of Hawaii, this unusual ring floated ...

Webb images reveal methane clouds appearing at different altitudes in Titan’s northern hemisphere. NASA, ESA, CSA, STScI, Keck Observatory Saturn’s most metal moon just got more intriguing.