Moody's Investor Service and Standard & Poor's Global Ratings have affirmed A2 and A+ long-term bond ratings for UCAR.

In a pair of new papers, scientists paint a picture of how solar cycles suddenly die, potentially causing tsunamis of plasma to race through the Sun’s interior and trigger the birth of the next sunspot cycle only a few short weeks later.

Even with the ideal computer model and nearly perfect observations, new research confirms what meteorologists have long thought: there's a limit to how far in advance we can forecast the weather.

Scientists at NCAR and CfA follow South American eclipse in NSF/NCAR research aircraft.

A constellation of small satellites launched on June 24 will lead to better hurricane forecasts and provide critical information about upper atmospheric disturbances that can affect global communications systems and electrical grids.