There’s a lot more of the bacterial species Streptococcus salivarius (shown) in the noses of people with hay fever than the noses of those without, researchers have found. The overabundance may be exacerbating allergy symptoms. DR KARI LOUNATMAA/Science Source By...

The lights of San Francisco scatter and reflect off the city's famous fog, making the sky bright even at night. Even above fog-free cities, skies are growing brighter at a faster clip than previously thought. Piotr Stanislawski/Moment Open/Getty Images By Lisa...

Wild red jungle fowl ( Gallus gallus ) range throughout South and Southeast Asia, where they are interbreeding with domesticated chickens. Jason Thompson/flickr ( CC BY 2.0 ) By Jake Buehler 10 hours ago Today’s red jungle fowl — the wild forebears of the domesticated...

Specially tailored laser beams can create a channel in the air through which light can efficiently travel, creating something akin to a fiber optic cable made of air. Михаил Руденко/iStock/Getty Images Plus By James R. Riordon January 9, 2023 at 7:00 am Tubular laser...

Analyses of tin ingots found aboard a merchant ship that sank off Turkey’s coast around 3,300 years ago suggest that sophisticated supply chains of the metal ran from Central Asia and part of Turkey to the Mediterranean. A replica of the vessel is shown....