Some days, the news makes it sound like we’ve finally pinned down the history of the solar system, like we’re reading from a finished book. Other days, the page keeps turning.
This week, the James Webb Space Telescope’s latest look at Neptune’s moon Nereid suggests we’ve been reading wrong. For decades, the moon’s wild, elongated orbit was taken as proof it was a drifter captured by Neptune’s gravity. New observations now point toward a different story: Nereid formed in place, while the giant moon Triton acted as a gravitational bully that smashed through the early solar system, leaving the smaller moon with a permanently “smooshed” path and turning it into a frozen time capsule—the kind of chaos that shaped the ground under our feet here on Earth billions of years ago. “Time capsule,” as researcher Matthew Belyakov calls it, means the whole violent history is still legible in the ice. It’s a reminder that “stable” is a relative term in planetary science.
Webb’s infrared eyes are uniquely suited to both tasks—parsing Nereid’s composition and mapping the thermal boundary of a world nearly 700 light-years away like WASP-94 A b. This “hot Jupiter” orbits its star 18 times closer than we are to the sun. Tidally locked, one face bakes in permanent, searing day while the other stays frozen in unreachable night. The most violent weather plays out along the day-night boundary, driven by winds that would make our hurricanes look like a light breeze.
But it’s the clouds that make you stop. The atmosphere is too hot for water. One researcher summed it up: the temperature is high enough that “gemstones are clouds.” Pulverized dust and bits of rock, suspended in a world of brutal atmospheric contrasts.
So the Webb gazes outward, and here on the ground the sky puts on its own show. A recent uptick in visible auroras across the U.S. is the sun’s raw energy slamming into our magnetosphere—a regular pulse, NOAA reminds us, far milder than the 1859 Carrington Event, but still worth keeping an eye on the federal forecasts. From the deer stand or the shop floor back here in Adams County, the view is relatively hospitable.
But the weather—whether it’s gemstone clouds on a hellscape 700 light-years away, or a solar storm turning the Wisconsin night green—is still, for better or worse, the weather. The history of the solar system is never as settled as the latest news cycle.