With the air as his canvas, a Dutch artist applies water vapor, smoke, lighting—and conjures clouds in surprising ... grazing cloud at the De Groen Fine Art Collection in Arnhem, the Netherlands.

Now, an amateur astronomer has spotted a strange wall of acid-filled clouds on the planet. Known as the Venus Cloud Discontinuity, the wall is around 5,000 miles long. It cuts across the equator ...

“It just seems sad to me that everybody here is so accepting that we have half a piece of art. You’d never chop off half a painting and keep the other half up.” Since Calder’s “clouds ...