News

Health & Medicine

Vessel rescue

A blood pressure medication limits damage to the aorta in people with Marfan syndrome, possibly signaling a new therapy for the condition.

Earth

Under Ice

Cruising in an icebreaker to the top of the world, scientists identified the aftermath of an event once thought impossible: a violent volcanic eruption on the deep-sea floor.

Life

Fossil helps document shift from sea to land

New fossils of an ancient, four-limbed creature help fill in the blanks of the evolutionary transition between fish and the first land-adapted vertebrates.

Astronomy

Impact may have transformed Mars

Three teams suggest that a huge object slammed into Mars, giving the planet an unusually dualistic topography.