News

Health & Medicine

Number of skin moles tied to breast cancer risk

Women who have many moles also have increased disease risk, which may reflect higher estrogen levels.

Animals

Winter road salting reshapes next summer’s butterflies

Winter road salt treatments boost sodium in roadside plants and alter development for monarch butterflies.

Life

Oxytocin stimulates repair of old mice’s muscles

The naturally produced hormone oxytocin, well known for its role in social bonding, may help heal injured muscles in the elderly.

Astronomy

Stopping starlight may bring other Earths into focus

Two new telescope concepts compete for NASA’s approval, in hopes of taking the first picture of a life-bearing exoplanet.