By understanding the nature of sulfur and its role in plant growth, you can ensure your plants are never starved for this essential nutrient. Characterized by its bright yellow color, sulfur can ...

Amanda Kooser covers the quirky side of science and space. A close-up photo taken by the Curiosity rover shows pure yellow sulfur crystals within a rock. NASA’s Curiosity rover ran over a rock ...

But the following year, like a sulfur butterfly popping out of a dingy, old chrysalis, the company shifted from gray to ...