In 2024, scientists dyed Michigan’s Peter Lake blue to block sunlight, then added fertilizer; despite the dye, rain washed pigment out and algae turned it green
When scientists announced Webb’s first definitive detection of Neptune’s auroras in March 2025, they revealed another surprise: observations taken in 2023 showed that the planet’s upper atmosphere had cooled by several hundred degrees since Voyager 2 visited in 1989—and scientists still don’t know exactly why.