Fluoride supplements have been used in the United States for decades and have proven to be safe and effective for decreasing cavities.

The Teal Wand, an at-home HPV testing device that could replace a Pap smear, could broaden access to cervical cancer screening.

Oddly shaped deposits of tree resin point to massive waves that struck northern Japan roughly 115 million years ago and swept a forest into the sea.

Researchers found the gene and genetic variation behind orange fur in most domestic cats, solving a decades-long mystery.

A faint yet visible Martian aurora is the first instance of the phenomenon spotted from another planet's surface.

Not all plants can be stored in a seed bank. Cryopreservation offers an alternative, but critics question whether this form of conservation will work.