Total Solar Eclipse of August 12, 2026, to Reveal Unique Solar Corona View A total solar eclipse on August 12, 2026, will offer a rare opportunity to witness the sun’s outer atmosphere, the corona, in a configuration that may never be repeated. Unlike previous eclipses, this event will capture a snapshot of the sun during Solar Cycle 25’s declining phase, reflecting years of magnetic activity and solar phenomena. The corona, a luminous halo of plasma shaped by the sun’s magnetic field, evolves constantly, making each eclipse a unique spectacle. Scientists and eclipse chasers anticipate a distinct view of the corona, influenced by the sun’s current activity level and the positioning of sunspots. The corona’s appearance is dictated by the sun’s 11-year magnetic cycle, which alternates between periods of high activity (solar maximum) and relative calm (solar minimum). During solar maximum, the corona exhibits complex structures, including spikes and streamers formed by magnetic fields anchored to sunspots. In contrast, solar minimum produces a more uniform, symmetrical corona. The 2026 eclipse occurs nearly two years after Solar Cycle 25 reached its peak in October 2024, placing it in the cycle’s declining phase. While the sun’s activity is waning, it remains more active than during the previous cycles’ minimums. Ryan French, a solar physicist at the Laboratory for Atmospheric and Space Physics, explains that the corona’s structure during the 2026 eclipse will differ from the highly structured display seen during the 2024 solar maximum. The August 2026 eclipse is expected to show a corona that is more active than the 2017, 2019, and 2020 eclipses but less intense than the 2024 event.#solar_cycle_25 #total_solar_eclipse #laboratory_for_atmospheric_and_space_physics #predictive_science #sunspots
Northern Lights: Next Chance for Aurora Across Boston Expected Wednesday A strong solar flare erupted from the sun on Monday, triggering a geomagnetic storm watch for Wednesday evening and creating an opportunity for the northern lights to be visible in New England for the third time this year. NOAA’s Space Weather Prediction Center classified the storm as a level G2, which is moderate on a five-point scale ranging from G1 (minor) to G5 (extreme). This level of activity could extend the visibility of the aurora as far south as the borders of Massachusetts, New Hampshire, and Vermont. Shawn Dahl, service coordinator for the Space Weather Prediction Center, noted that if the storm reaches G2 levels during favorable early evening or dark hours, the aurora could be seen in northern New England. The potential for the storm to escalate to a G3, strong geomagnetic storm, remains possible, which could bring the view line farther south and allow all of New Englanders to witness the phenomenon. The sun’s activity, though millions of miles away, has the potential to intensify. The flare, an M2.8-class event, followed a relatively quiet month on the sun, raising questions about the intensity of the solar minimum. However, the flare produced an Earth-directed eruption, suggesting the excitement might be justified. Solar flares release plasma known as coronal mass ejections (CMEs), which are plumes of solar material carrying magnetic fields. These CMEs are launched into space at speeds exceeding 1 million mph and travel through space, interacting with Earth’s magnetic field. When charged particles from the CMEs collide with oxygen and nitrogen ions in the upper atmosphere, they create the shimmering ribbons of light known as the northern lights or aurora borealis.#space_weather_prediction_center #aurora_borealis #shawn_dahl #solar_cycle_25 #northern_lights
