On Aug. 25, 1997, NASA launched the Advanced Composition Explorer, or ACE satellite to study energetic particles travelling through space. It lifted off from Kennedy Space Center in Florida on a Delta ...

NASA's Advanced Composition Explorer (ACE) observes a wide array of particles that flow toward Earth from the sun to better understand the great space weather system that connects the sun to our ...

A multinational team of researchers studying data from NASA’s Advanced Composition Explorer (ACE) satellite believe they have identified two major warnings signs that together trigger destructive ...

NASA: Planning a trip to Mars? Take plenty of shielding. According to sensors on NASA’s ACE (Advanced Composition Explorer) spacecraft, galactic cosmic rays have just hit a Space Age high. NASA: ...