News

Environment

Invasive jumping worms damage U.S. soil and threaten forests

Also known as snake worms, these writhing wrigglers turn forest leaf litter into bare ground, changing soil composition and ecosystems as they go.

Space

A ‘lake’ on Mars may be surrounded by more pools of water

Radar data hint at patches of liquid water beneath Martian polar ice, but some urge caution in interpreting results.

Physics

A stop-motion experiment reveals supercooled water’s dual nature

Scientists found signs that water cooled well below freezing consists of two different arrangements of molecules.

Health & Medicine

Defects in early immune responses underlie some severe COVID-19 cases

Scientists are finding that strong early immune responses to the coronavirus are crucial to protect some people from developing life-threatening symptoms.