When Is the Next Solar Eclipse?

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What Is a Solar Eclipse?

A solar eclipse happens when the Moon passes between the Sun and Earth, blocking all or part of the Sun's light from reaching a portion of Earth's surface. This can only occur during a new moon, when the Moon is positioned between the Sun and Earth. However, solar eclipses do not happen every new moon because the Moon's orbit is tilted about 5 degrees relative to Earth's orbit around the Sun. Only when the new moon occurs near one of the orbital nodes — the two points where the Moon's path crosses the ecliptic plane — can an eclipse take place.

The Geometry of a Solar Eclipse

The Moon, despite being roughly 400 times smaller than the Sun, is also about 400 times closer to Earth. This remarkable coincidence means the Moon and Sun appear roughly the same size in the sky — about 0.5 degrees in angular diameter. When the Moon passes directly in front of the Sun, it can cover the Sun's disk almost perfectly, producing a total solar eclipse.

Because the Moon's orbit is elliptical, its apparent size varies. When the Moon is near perigee (closest to Earth), it appears slightly larger than the Sun and can fully cover it. When the Moon is near apogee (farthest from Earth), it appears slightly smaller, leaving a ring of sunlight visible around its edge — this is called an annular eclipse.

Types of Solar Eclipses

The Shadow Cone

During a solar eclipse, the Moon casts two types of shadows on Earth:

• Umbra: The dark, central shadow where the Sun is completely blocked. This creates the path of totality during a total solar eclipse. The umbra is relatively small — typically 100–250 km wide — which is why total solar eclipses are visible only from a narrow strip of Earth's surface.
• Penumbra: The lighter, outer shadow where the Sun is only partially blocked. This creates the region where a partial solar eclipse is visible. The penumbra is much larger, often thousands of kilometers across.

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The Next Solar Eclipse: August 12, 2026 Total Solar Eclipse

The next solar eclipse is a total solar eclipse that will take place on Wednesday, August 12, 2026. This is one of the most anticipated astronomical events of the decade, as it brings totality to parts of Europe for the first time since the 1999 eclipse that crossed from Cornwall to the Black Sea.

Key Facts at a Glance

Why This Eclipse Matters

The August 2026 total solar eclipse is significant for several reasons:

1. First total solar eclipse in Iceland since 1954 — and the next one visible from Iceland will not occur until 2196

2. First totality in Spain since 1912 (as an annular-total eclipse) — and the first purely total eclipse in Spain since 1842

3. Accessible from Europe — while the path crosses remote Arctic regions, it also touches northern Spain, making it accessible to millions of European eclipse chasers

4. Part of an eclipse triple — this eclipse is followed by a partial lunar eclipse on August 27, 2026, and an annular solar eclipse on February 6, 2027

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Path of Totality and Key Locations

The path of totality for the August 12, 2026 eclipse begins in the Arctic Ocean and sweeps southeast across Greenland, Iceland, and into northern Spain. Only locations within this narrow path will experience the Sun being completely covered by the Moon.

Path Overview

The Moon's shadow first touches Earth over the Arctic Ocean, northwest of Siberia, at approximately 09:43 UTC. It then sweeps across:

1. Arctic Ocean: The shadow crosses the Arctic between Svalbard and northern Greenland

2. Greenland: The path crosses eastern Greenland, including the Scoresby Sund area — one of the most dramatic fjord landscapes on Earth

3. Iceland: The entire country lies within the path of totality, making this perhaps the best-accessible location for the eclipse

4. Atlantic Ocean: The shadow crosses the North Atlantic between Iceland and Spain

5. Northern Spain: The path enters Spain near the Bay of Biscay coast and crosses the autonomous communities of Asturias, Cantabria, Castile and León, and Aragon before the shadow leaves Earth near the Mediterranean coast

The shadow leaves Earth's surface at approximately 12:36 UTC.

Key Cities Near or Within the Path of Totality

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Partial Visibility Regions

Even if you are not within the path of totality, you can still see a partial solar eclipse from a much wider area. The partial eclipse will be visible across:

• All of Europe: From the British Isles to the Urals, including Scandinavia, continental Europe, and the Mediterranean
• North Africa: Morocco, Algeria, Tunisia, Libya, and northern Egypt
• West Africa: Mauritania, Mali, Niger, and northern Nigeria
• Northeastern North America: Eastern Canada (Newfoundland, Labrador) and parts of northeastern Maine

Estimated Partial Eclipse Coverage for Major Cities

Even at 80% coverage, the Sun remains dangerously bright. You must use certified solar filters at all times when viewing a partial eclipse — the Sun's rays can cause permanent eye damage in seconds.

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Timing Table for Major Cities

The following table shows approximate times for the partial and total phases of the August 12, 2026 solar eclipse in major cities. All times are local.

Note: Times are approximate and based on central city coordinates. Actual times may vary by 1–2 minutes. Cities marked "—" do not experience totality. Spanish times assume CEST (UTC+2).

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How to Safely View a Solar Eclipse

This is the most important section of this article. Viewing a solar eclipse without proper eye protection can cause permanent, irreversible eye damage, including solar retinopathy — a condition where the retina is burned by concentrated sunlight. This damage can occur in seconds and may not be immediately painful because the retina has no pain receptors.

Safe Viewing Methods

During Totality — The Only Safe Moment

The only time it is safe to look at the Sun with the naked eye during a solar eclipse is during totality — the brief period when the Moon completely covers the Sun. During totality:

• The Sun's bright photosphere is completely hidden
• The solar corona is visible as a pearly white halo
• No eye protection is needed
• The experience is breathtaking

However, you must be absolutely certain totality has begun before removing your eclipse glasses, and you must put them back on BEFORE the first ray of sunlight reappears at the end of totality. If you are not sure whether totality has started, keep your glasses on.

The "Diamond Ring" Warning

As totality begins and ends, a bright spot of sunlight appears at the Moon's edge — this is called the diamond ring effect. It is stunningly beautiful but also a signal: sunlight is about to emerge or has just emerged. When you see the diamond ring forming at the end of totality, immediately put your eclipse glasses back on. Do not wait.

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Total vs Annular vs Partial: What's the Difference?

Understanding the three main types of solar eclipses helps you know what to expect and how to prepare for each.

Total Solar Eclipse

A total solar eclipse occurs when the Moon passes directly between the Sun and Earth and is close enough (near perigee) to completely cover the Sun's disk. The Moon's dark silhouette is surrounded by the Sun's corona — a ghostly, pearly white halo of superheated plasma extending millions of kilometers into space. Totality can last from a few seconds to a maximum of about 7.5 minutes, though most total eclipses have totality durations of 1–3 minutes.

What you see: Day turns to an eerie twilight. Bright stars and planets become visible. The temperature drops. Animals fall silent. The corona streams outward from the black disk of the Moon. It is widely described as one of the most awe-inspiring natural phenomena a person can witness.

Annular Solar Eclipse

An annular eclipse occurs when the Moon passes directly between the Sun and Earth but is too far away (near apogee) to completely cover the Sun. The Moon appears slightly smaller than the Sun, leaving a brilliant ring of sunlight — the "Ring of Fire" — visible around the Moon's silhouette.

What you see: The Moon covers most of the Sun, but a bright ring remains. The sky dims but does not turn dark. The corona is NOT visible because sunlight still streams around the Moon. You must keep your eclipse glasses on at ALL times during an annular eclipse — there is no safe naked-eye moment.

Partial Solar Eclipse

A partial solar eclipse occurs when the Moon passes in front of the Sun but does not align perfectly, covering only a portion of the solar disk. This is the most common type of solar eclipse and is what most observers outside the path of totality or annularity will experience.

What you see: The Sun appears with a "bite" taken out of it. The size of the bite depends on how close you are to the central path. Even with a large bite (80–90%), the Sun remains dangerously bright, and eye protection is required at all times.

Comparison Table

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Future Solar Eclipses Through 2030

If you cannot make it to the August 2026 eclipse, there are more opportunities coming. Here is every solar eclipse through 2030:

The August 2, 2027 total solar eclipse is particularly notable — with a maximum totality of 6 minutes 23 seconds crossing Egypt (including Luxor and the Valley of the Kings), Saudi Arabia, and Yemen, it will be one of the longest total eclipses of the decade and is already generating enormous interest among eclipse travelers.

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Why Solar Eclipses Are Rare at Any Given Location

Solar eclipses occur somewhere on Earth roughly 2–5 times per year, so they are not rare on a global scale. However, at any specific location, total solar eclipses are extraordinarily rare.

The Numbers

• The average interval between total solar eclipses at a given point on Earth is approximately 375 years
• Some locations have gone over 1,000 years without a total solar eclipse
• A total solar eclipse has not been visible from London since 1715 and will not be again until 2151
• The 2024 total solar eclipse was the first to cross the contiguous United States since 2017, but before that, the previous one was in 1979 for the mainland US

Why So Rare Locally?

The path of totality is extremely narrow — typically 100–250 km wide. Earth's surface is vast (510 million km²), so the chance that the path crosses any particular point is very small in any given year. Additionally, about 71% of Earth's surface is ocean, meaning many total solar eclipses are visible only from remote waters with no land in the path.

The Moon's shadow also moves quickly — at speeds of 1,700 km/h near the equator to over 8,000 km/h near the poles — so the window of totality at any location lasts only minutes. All of these factors combine to make total solar eclipses one of the rarest and most sought-after astronomical experiences for any given observer.

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