<p>It is a mystery which has confused&nbsp;millions around the world. Several fireballs appear&nbsp;along the Mekong river in Thailand each&nbsp;year as people gather to witness it.</p>

<p>Interestingly, it is not just a one-off event, the fireballs typically are many&nbsp;and some witnesses say even thousands can be seen. Locals call it the mythical 'Phaya Nak', a giant serpent which appears in the sky from inside the river.</p>

<p><a href="https://www.wionews.com/science/a-mysterious-spacecraft-crashed-into-the-moon-says-nasa-492426">Also Read:&nbsp;Mystery deepens as spacecraft crashes into Moon</a></p>

<p>The mysterious phenomenon appears between late October and early November each year. It has also become a tourist attraction as people gather to witness the "fireball phenomenon" also popularly called the Naga Fireball Festival.</p>

<p><strong>Watch:&nbsp;What are solar flares?</strong></p>

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<p>The scientists are still not sure how it is taking place although there are a number of theories from swap gas which is mainly methane formed due to decomposition of organic material, another theory suggests it occurs when the Earth, Sun and Moon align. However, there is no exact explanation for the strange phenomena.</p>

<p>People on Twitter are equally mystified.</p>

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<p dir="ltr" lang="en">Wonders of the world,<br />
Naga Fireball on the Mekong River,Nongkhai,<br />
Thailand, Buddhist Lent Day,15th lunar month 11,<br />
Today every year. <a href="https://t.co/Cd4iLBx7PQ">pic.twitter.com/Cd4iLBx7PQ</a></p>
— Takeshi Aor (@AorTakashi) <a href="https://twitter.com/AorTakashi/status/1451377709880250373?ref_src=twsrc%5Etfw">October 22, 2021</a></blockquote>
<script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script></div>
<a class="close-mark close-div" href="#" id="jqclosemark">×</a></div>

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<p dir="ltr" lang="en">🥳Get ready for the return of Naga Fireball festival 21-23 Oct, there will be some fun activities &amp; giveaways on our discord. stay tuned. 😉❤️‍🔥❤️‍🔥❤️‍🔥❤️‍🔥 <a href="https://t.co/y2xEQHmxXA">pic.twitter.com/y2xEQHmxXA</a></p>
— Hype Viper (@LenburyVip) <a href="https://twitter.com/LenburyVip/status/1447536143503745028?ref_src=twsrc%5Etfw">October 11, 2021</a></blockquote>
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<p>Several have in fact questioned whether it is a natural or man-made phenomenon as the event trends on social media whenever it occurs as some call&nbsp;it "ghost lights".</p>

<p>Some say the size of the fireballs is as big as a basketball and&nbsp;it appears like a shooting star. However, no one has been able to pinpoint why it exactly occurs and the exact nature of the fireball.</p>

<p>(With inputs from Agencies)</p>

<p><strong>WATCH WION LIVE HERE</strong></p>

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It is a mystery which has confused millions around the world. Several fireballs appear along the Mekong river in Thailand each year as people gather to witness it.

It is a mystery which has confused millions around the world. Several fireballs appear along the Mekong river in Thailand each year as people gather to witness it. Interestingly, it is not just a one-off event, the fireballs typically are many and some witnesses say even thousands can be seen. Locals call it the mythical 'Phaya Nak', a giant serpent which appears in the sky from inside the river. Also Read: Mystery deepens as spacecraft crashes into Moon The mysterious phenomenon appears between late October and early November each year. It has also become a tourist attraction as people gather to witness the "fireball phenomenon" also popularly called the Naga Fireball Festival. Watch: What are solar flares? The scientists are still not sure how it is taking place although there are a number of theories from swap gas which is mainly methane formed due to decomposition of organic material, another theory suggests it occurs when the Earth, Sun and Moon align. However, there is no exact explanation for the strange phenomena. People on Twitter are equally mystified. Wonders of the world, Naga Fireball on the Mekong River,Nongkhai, Thailand, Buddhist Lent Day,15th lunar month 11, Today every year. pic.twitter.com/Cd4iLBx7PQ — Takeshi Aor (@AorTakashi) October 22, 2021 × 🥳Get ready for the return of Naga Fireball festival 21-23 Oct, there will be some fun activities & giveaways on our discord. stay tuned. 😉❤️‍🔥❤️‍🔥❤️‍🔥❤️‍🔥 pic.twitter.com/y2xEQHmxXA — Hype Viper (@LenburyVip) October 11, 2021 × Several have in fact questioned whether it is a natural or man-made phenomenon as the event trends on social media whenever it occurs as some call it "ghost lights". Some say the size of the fireballs is as big as a basketball and it appears like a shooting star. However, no one has been able to pinpoint why it exactly occurs and the exact nature of the fireball. (With inputs from Agencies) WATCH WION LIVE HERE

Fireballs in Thailand's Mekong River: The unexplained phenomena

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Fireballs in Thailand's Mekong River: The unexplained phenomena