Ever wondered why so many plants look green? Well, it's because healthy leaves absorb the red and blue wavelengths of sunlight, and they reflect most of the green light back to our eyes. But the sun ...

The artist Scott Kildall is waving his hand over the contours of a Joshua tree, just inches from its spiky green, bayonet-like leaves. "If I get too close to it, it will prick me and draw blood," he ...

Scientists have long studied how near-infrared light bounces off forests and grasslands, as a proxy for plant health. Now, an artist is using the... An artist transforms the iconic, scraggly Joshua ...