1 00:00:00,600 --> 00:00:02,400 Roughly every 11 years, the 2 00:00:02,400 --> 00:00:03,633 Sun's magnetic field 3 00:00:03,633 --> 00:00:05,433 completely flips. 4 00:00:05,433 --> 00:00:06,966 This means the Sun's 5 00:00:06,966 --> 00:00:08,266 north and south magnetic 6 00:00:08,266 --> 00:00:09,800 poles switch places. 7 00:00:10,433 --> 00:00:11,833 Around the time of this flip 8 00:00:11,833 --> 00:00:12,966 solar activity 9 00:00:12,966 --> 00:00:14,966 gradually ramps up. 10 00:00:15,333 --> 00:00:16,133 The Sun will have 11 00:00:16,133 --> 00:00:17,233 more sunspots 12 00:00:17,233 --> 00:00:18,466 and solar eruptions 13 00:00:18,466 --> 00:00:19,833 like solar flares 14 00:00:19,833 --> 00:00:21,833 and coronal mass ejections. 15 00:00:22,333 --> 00:00:23,666 The peak of this activity 16 00:00:23,666 --> 00:00:25,666 is known as solar maximum. 17 00:00:26,100 --> 00:00:27,400 Solar maximum marks 18 00:00:27,400 --> 00:00:28,566 the halfway point of 19 00:00:28,566 --> 00:00:29,400 the solar cycle, 20 00:00:29,400 --> 00:00:30,766 and usually means a year 21 00:00:30,766 --> 00:00:33,000 or two of high solar activity. 22 00:00:33,600 --> 00:00:34,833 During this time, 23 00:00:34,833 --> 00:00:36,133 we might see more severe 24 00:00:36,133 --> 00:00:37,233 geomagnetic storms 25 00:00:37,233 --> 00:00:37,900 at Earth, 26 00:00:37,900 --> 00:00:39,100 which trigger aurora 27 00:00:39,100 --> 00:00:40,233 but also threaten 28 00:00:40,233 --> 00:00:41,533 our communications, 29 00:00:41,533 --> 00:00:43,533 satellites, and power grids. 30 00:00:44,300 --> 00:00:45,966 NASA scientists continue 31 00:00:45,966 --> 00:00:47,400 to study the solar cycle 32 00:00:47,400 --> 00:00:48,766 so we can better understand 33 00:00:48,766 --> 00:00:49,800 solar activity 34 00:00:49,800 --> 00:00:51,166 to protect our technology 35 00:00:51,166 --> 00:00:52,633 in space and on Earth.