Originally published on Wed December 4, 2013 11:02 am
A newer form of mammogram may do a better job of finding cancer, a study finds. But the technology is still too untested to know if it's going to be useful for most women or even to know for sure who might benefit.
It's called breast tomosynthesis, or 3-D mammography. Since being approved by the Food and Drug Administration in 2011, the new type of scan has been touted by radiologists.
With HealthCare.gov able to handle an increasing number of users, the Obama administration finally went on the offensive to urge Americans to sign up for new health insurance. The administration had planned a massive advertising and social media campaign to support the Affordable Care Act back in October, but the push was delayed for two months after the health insurance exchange website failed in its debut. The effort comes as the deadline for people to sign up for coverage starting next year looms.
Puddled meltwater very likely primed this ancient edge of the Antarctic's Larsen Ice Shelf to rapidly disintegrate over just several weeks. This view of the splintered mix of frozen bergs is from a Feb. 21, 2002, satellite image.
An expert panel at the National Academy of Sciences is calling for an early warning system to alert us to abrupt and potentially catastrophic events triggered by climate change.
The committee says science can anticipate some major changes to the Earth that could affect everything from agriculture to sea level. But we aren't doing enough to look for those changes and anticipate their impacts.