NASA's WB-57 Flies to Iceland to Chase the Shadow of the August Twelfth Solar Eclipse

A NASA WB-57F Canberra landed at Keflavik Airport in Iceland on August 10, 2026, positioning itself to fly directly into the path of a total solar eclipse on August 12. From above 60,000 feet, the high-altitude jet will chase the moon’s shadow across the North Atlantic, capturing minutes of data on the sun’s corona that ground observers cannot match. The science it gathers feeds directly into space weather forecasting - the same forecasting that helps protect GPS accuracy and radio communications that pilots depend on.

What NASA Is Doing and When

The aircraft flew as callsign NASA 926, departing Ellington Field in Texas on August 9, making a stop en route before crossing the North Atlantic and arriving in Iceland on August 10. On August 12, it launches to fly inside the eclipse’s shadow.

This is not a sightseeing flight. It’s a targeted scientific mission built around a few irreplaceable minutes of totality.

Why a 1950s Jet Is Doing Cutting-Edge Science

The Canberra began life as a British bomber, the English Electric Canberra. The United States built its own version under license as the B-57. NASA operates only a small handful of the high-altitude WB variant - these are among the oldest jets still in active service anywhere on Earth.

The reason NASA keeps a design that first flew in the early 1950s on the roster is simple: altitude. The WB-57 can climb above 60,000 feet, which puts it over 95% of the atmosphere - above the weather, the haze, and almost everything else that gets between a sensor and its target.

At that altitude, the air overhead is thin, clean, and dark. The clarity for astronomical observation is extraordinary.

Why Chase an Eclipse From the Air?

When the moon blocks the sun, it reveals the corona - the sun’s outer atmosphere - which is normally drowned out by the brightness of the solar surface. During totality, it becomes visible for just a few minutes.

That’s the problem for ground-based scientists. On the ground, totality lasts only two to three minutes before the shadow races on, and observers must look up through the entire atmosphere, clouds and turbulence included.

Put the same instrument in the nose of a jet flying along the shadow’s path, and the aircraft can move with the shadow rather than waiting for it to pass. This dramatically extends the observation window. The WB-57 effectively becomes a flying observatory, carrying cameras and instruments tuned to study the corona in wavelengths impossible to capture from the ground.

Why This Matters for Pilots

The corona is where space weather is born. It drives the solar wind and is tied to the flares and coronal mass ejections that can disrupt satellites, degrade GPS accuracy, and interfere with radio communications.

That’s the direct connection to the flight deck. A strong solar event can degrade the GPS signal your panel depends on, and it can knock down high-frequency (HF) radio - the link that keeps oceanic and remote flights in contact where there’s no radar and no VHF coverage.

The FAA and the airlines already treat space weather seriously. Airlines flying polar routes reroute when solar storms flare, because those high-latitude tracks are the most exposed to radiation and communication blackouts. Science coming off flights like this one sharpens the models behind those forecasts.

One analyst’s read, offered as opinion rather than established fact: space weather is likely to move further into everyday flight planning over the coming years, much the way convective forecasts are handled today. The trend line points that way, though it remains a forecast, not a certainty.

Why Iceland?

The eclipse path on August 12 crosses the North Atlantic and high northern latitudes. Keflavik places the aircraft and its crew right at the doorstep of that track. The plan is straightforward: position the airplane, wait for the geometry to line up, then launch to meet the shadow at exactly the right moment.

On the twelfth, a two-person crew in pressure suits will sit above the weather with cameras running, gathering minutes of data that scientists will study for years.

The Bigger Picture

There’s a striking engineering story here. An airframe designed when propeller airliners still ruled the skies is now performing science a brand-new aircraft would struggle to match. In aviation, capability isn’t about how new a machine is - it’s about whether it can do the job. At 60,000 feet, above the weather, chasing a shadow across the North Atlantic, this old Canberra can do a job almost nothing else can.

There’s no operational action item here. But the next time your GPS flickers, or you hear about a polar route being rerouted, remember there’s a 1950s jet over the North Atlantic helping us understand why.

Key Takeaways

• A NASA WB-57F Canberra (callsign NASA 926) reached Keflavik, Iceland on August 10, 2026, to fly into a total solar eclipse on August 12.
• Flying above 60,000 feet - over 95% of the atmosphere - lets the jet observe the sun’s corona with clarity impossible from the ground.
• Chasing the shadow from the air extends totality’s short 2–3 minute observation window dramatically.
• Corona research directly informs space weather forecasting, which protects GPS accuracy and HF/radio communications pilots rely on.
• Airlines already reroute polar flights during solar storms; missions like this one make those forecasts sharper.