Goddard Space Flight Center -(ENEWSPF)- A CME propelled toward Earth on June 21 may be moving slower than originally thought. Analysts at the GSFC Space Weather Lab have downgraded the cloud’s probable speed from 500 to 400 mph (800 to 650 km/s). Impact is now expected on June 24 at 3am EDT (0700 UT) and a weaker blow to Earth’s magnetic field is expected. Forecasters now predict a relatively mild G1-class geomagnetic storm when the…






