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 ...

Every time a giant solar storm -- like the one that blasted by Earth earlier this week -- rushes past NASA's Advanced Composition Explorer satellite, scientists at NOAA's space weather forecasting ...

Dahl is referring to NASA's Advanced Composition Explorer (ACE) and NOAA's The Deep Space Climate Observatory (DSCOVR) missions which monitor space weather from L1, a point of gravitational ...

McComas is also the PI of many major NASA instruments, including the plasma instrument in Ulysses (SWOOPS) and the proton-electron instrument in the Advanced Composition Explorer (ACE – SWEPAM). These ...

On Mar. 17, 2013, at 1:28 a.m. EDT, the coronal mass ejection from Mar. 15 passed by NASA's Advanced Composition Explorer as it approached Earth.