Sun unleashes colossal solar flare and coronal mass ejection, raising the chances of northern lights this week

A powerful M5.7 solar flare erupted from the sun on May 10, unleashing an impressive coronal mass ejection (CME) that could deliver Earth a glancing blow later this week and potentially spark northern lights shows at excessive latitudes.

The eruption peaked at 9:39 am EDT (1339 GMT) from sunspot area AR4436, now rotating into Earth’s “strike zone” on the sun‘s northeastern limb. As the energetic area swings additional into view over the subsequent few days, any main flares or CMEs it produces could have a larger probability of being directed towards Earth.

While most of the just lately launched CME seems to be racing east of Earth, NOAA’s Space Weather Prediction Center and the UK Met Office say half of the increasing plume of solar materials should brush previous Earth round early May 13. If that occurs, it might set off minor (G1) geomagnetic storm circumstances, enhancing aurora shows throughout the northern US and the UK

Solar flares are ranked using a scale A, B, C, M and X — the latter being the most powerful category. Each step represents a tenfold increase in energy output. The May 10 event reached M5.7 strength, making it a powerful flare capable of disrupting radio communications on Earth.

The solar flare eruption triggered a radio blackout over the Atlantic Ocean, according to NOAA’s Space Weather Prediction Center. These blackouts occur when intense X-ray and ultraviolet radiation from solar flares ionize Earth’s higher environment, interfering with high-frequency radio signals utilized by aviators, mariners and novice radio operators.

The timing of the eruption is especially notable for aurora chasers. Almost exactly two years ago, on May 10, 2024, Earth experienced the first “extreme” G5 storm since 2003 — the strongest in additional than 20 years. The historic occasion produced dazzling auroras seen far past their ordinary excessive latitude vary, with skywatchers reporting northern lights deep into mid-latitudes equivalent to southern Florida and Mexico.