A ‘Ring of Fire’ Eclipse Will Light Up Antarctica on Tuesday, and Only a Handful of Scientists Will See It

On Feb. 17, 2026, the first solar eclipse of the year will trace a fiery ring across Antarctic skies as the moon passes between Earth and the sun without fully covering it. The annular eclipse, sometimes called a “ring of fire” for the bright halo of sunlight left visible around the moon’s silhouette, will be confined entirely to Antarctica and a narrow strip of the Southern Ocean. Partial phases will reach parts of southern Africa, South America and nearby island nations, but the full ring will play out over a landscape shared mostly with penguins and ice.

Two Research Stations Sit in the Path

The path of annularity will stretch roughly 2,661 miles long and 383 miles wide across eastern Antarctica, according to Time and Date calculations. At maximum eclipse around 12:12 UTC, the moon will block approximately 96% of the sun’s disk, and the ring itself should last about 2 minutes and 20 seconds.

Only two inhabited locations fall along the annular track. The first is Concordia Research Station, a joint French-Italian outpost deep in Antarctica’s interior. Concordia is one of just three stations in the continent’s interior, home to roughly 16 scientists at any given time, and it regularly records temperatures plunging to minus 112 degrees Fahrenheit. For that small crew, the eclipse will begin around 6:48 p.m. local time and peak at 7:47 p.m., delivering the full fiery halo for just over two minutes.

The second is Russia’s Mirny Station, established in 1956 as the country’s first Antarctic outpost, located in Queen Mary Land on the Davis Sea coast. Its few dozen residents, who study climate, sea ice, cosmic rays, and biodiversity, can expect to see the ring of fire for roughly 1 minute and 47 seconds. The much larger McMurdo Station will miss annularity but should still experience a striking partial eclipse, with the Sun about 86% blocked by the Moon.

What Makes a Polar Eclipse Scientifically Useful

Antarctica’s atmosphere is among the driest and clearest on Earth, with almost no light pollution. These conditions allow instruments to detect subtle changes in solar radiation and atmospheric chemistry that city-based observations would miss.

When an annular eclipse crosses the polar region, it briefly cuts the ionizing radiation reaching a narrow band of the upper atmosphere, producing measurable dips in electron density that affect radio signals and GPS accuracy. Studying those dips at high latitudes, where Earth’s magnetic field funnels charged particles from the solar wind, provides data that mid-latitude eclipses cannot replicate. According to NASA’s eclipse catalog, the Feb. 17 event is classified as annular, with partial visibility extending across Antarctica, Africa, South America and the surrounding oceans.

Because no single nation’s ground stations can cover the entire eclipse path in Antarctica, events like this one push space agencies and research institutions toward pooling satellite and ground observations. Data from polar-orbiting spacecraft, combined with readings from Concordia and Mirny, will help reconstruct how the eclipse affects the ionosphere above one of Earth’s magnetic poles. Those findings feed into space weather models that protect satellite operations and communications networks.

Where the Partial Eclipse Will Be Visible

Outside Antarctica, observers across a broad arc of the Southern Hemisphere will see the moon take a “bite” out of the sun. According to interactive maps from Time and Date, partial coverage will reach southern South Africa, Mozambique, Madagascar, Mauritius and the southern tips of Argentina and Chile. How much of the sun gets covered depends on location. Areas closer to Antarctica will see a deeper partial phase, while those farther north may notice only a modest dip in the solar disk.

Viewing safety applies regardless of how much of the Sun is covered. Even a shallow partial eclipse can damage unprotected eyes, and the Sun never dims to safe levels at any point during an annular event. Certified solar filters or indirect projection methods, such as pinhole viewers, are required for every phase. National observatories and science centers in affected regions are expected to organize public viewing events, though confirmed plans have not yet been widely announced. Space.com’s eclipse guide offers additional timing details for specific locations.

How to Watch If You’re Not in the Southern Hemisphere

For everyone else, livestreams will be the best option. TimeandDate.com is hosting a free livestream featuring telescope feeds and expert commentary, and Space.com will carry live coverage as well. Follow the hashtag #SolarEclipse2026 on social media to catch real-time photos and updates from researchers on the Antarctic ice and viewers across Africa and South America as the eclipse unfolds.

The Bigger Eclipse Is Coming in August

If February’s eclipse feels too remote to get excited about, the second solar eclipse of 2026 should change that. On August 12, a total solar eclipse will cross the Arctic, Greenland, Iceland, and northern Spain. Partial visibility will reach much of Western Europe and North America. Unlike an annular eclipse, a total eclipse fully blocks the Sun, revealing its wispy outer corona in an eerie midday darkness. The eclipse event is expected to draw massive crowds across Europe, as it will be the first total eclipse visible from the mainland continent since 1999.