The sweet spot of SPF for babies is anywhere between SPF 30 and SPF 50. “SPF 30 blocks about 97% of UVB rays, while SPF 50 blocks around 98%,” says Dr. Cheng. “The difference in protection is slight, ...

The longer, warmer days of spring spark phenological changes in trees, from root to tip. As their limbs stretch and twist ...

Santa Fe Plein Air Paintout. The eighth annual Santa Fe Plein Air Paintout began April 9 with public viewing for three days ...

Trees may forgo photosynthesis if they can’t absorb enough water overnight, revealing how drought reshapes their daily ...

A beautifully crafted San Francisco Bay Area Italian villa-style estate in one of the most prestigious enclaves in the country is on the market for $32 million.

Plants have small pores on the underside of their leaves, known as stomata. When the sun rises, these pores open and the ...