The Sun is particularly active at the moment, unleashing powerful solar flares and causing radio blackouts on Earth. This is all part of an 11-year cycle that sees the Sun's poles reverse. Sun activity increases and decreases in an 11-year cycle known as the Schwabe cycle. From 1826 to 1843, German amateur astronomer Heinrich Schwabe observed the Sun, … [Read more...] about The Sun’s Poles Are About To Flip. What Will Happen When They Do?
Solar Dynamics Observatory
NASA’s ‘Smiling Sun’ Image Is a Reminder of the Threat of Solar Wind
Coronal holes on the sun can release jets of charged particles that may interfere with Earth’s atmosphere In a NASA photo that made the rounds on social media last week, the sun appeared to smile for the camera. The image, taken by the space agency’s Solar Dynamics Observatory satellite, was shared on one of NASA’s Twitter accounts. Social media users have compared the … [Read more...] about NASA’s ‘Smiling Sun’ Image Is a Reminder of the Threat of Solar Wind