Earth’s radio signals may be protecting it from space radiation

The Earth's atmosphere bears precious little resemblance to what it looked like at the start of the Industrial Revolution. As radio technology has advanced and spread, the signals that transmitters produce -- specifically the Very Low Frequency (VLF)...

Republican congressmen question value of asteroid redirect mission

A pair of Republican congressmen, both of whom sit on the House Committee on Science, Space and Technology, contacted NASA Administrator Charles Bolden on Tuesday, requesting more information from the space administration about a recent report suppor...