News in Brief

Earth

Earth/Environment

Licorice may be a natural alternative to antibiotics on hog farms, plus more in this week’s news.

Life

Genes & Cells

Smoking can damage DNA in a flash, plus more in this week's news.

Health & Medicine

Body & Brain

Obesity rates skyrocket worldwide, plus more in this week’s news.

Life

Life

New studies unveil the fire ant genome and why honeybee personalities matter, plus more in the week’s biology news.

Space

Atom & Cosmos

Evidence gets stronger that Mars once held an ocean, plus more in this week’s news.

Humans

Humans

Researchers reveal how feeling physical pain helps people ease a guilty conscience, plus more in this week's news.