Scientists have previously noticed that the Earth's magnetic field seems to decay periodically, but the reason was unidentified before. The new study confirms that it indeed weakens every 200 million years.
Solar geoengineering, or reflecting the Sun's radiation back to space, is one of many proposed solutions to global warming. However, cloud simulations revealed that in the long-term, there may be devastating consequences.
NASA scientists thought that flurry images that look like snow are actually fast moving energetic particles, which NASA calls solar radiation storm that hit an instrument on Solar and Heliospheric Observatory on Oct. 29, 2015.