Another round of auroras may put on a dazzling display across U.S. states this evening, so be sure to look up Elizabeth Ruggiero/Getty A powerful mass ejection (CME) from sunspot AR4199 is set to ...

NOAA’s Space Weather Prediction Center has issued a geomagnetic storm watch for October 16 as several coronal mass ejections ...

CME Group's third-quarter profit pulled back from higher costs and retreating revenue as it brought in less from fees on trading and clearing futures and options. The derivatives marketplace operator ...

Heads up aurora chasers! Powerful geomagnetic storm conditions could trigger northern lights at mid-latitudes overnight as a CME impact is detected and more could be on the way. Editor's note: Wow!

A geomagnetic storm watch has been issued for parts of the United States as a coronal mass ejection was observed to be lifting off the sun on Saturday. The Space Weather Prediction Center has issued a ...

Shares of CME Group Inc. Cl A CME slipped 4.88% to $270.47 Monday, on what proved to be an all-around positive trading session for the stock market, with the S&P 500 Index SPX rising 3.26% to 5,844.19 ...