Ball lightning has fascinated and puzzled people for centuries. This rare and mysterious phenomenon, often described as a glowing sphere of light that appears during thunderstorms, has been the subject of countless anecdotes, scientific investigations, and debates. But is ball lightning even real? And if so, what causes it?

Here, we’ll briefly dive into the basics of ball lightning, exploring what it reportedly looks like, how rare it is, what might cause it, and whether it poses any danger.

What Is Ball Lightning?

Ball lightning is described as a luminous, spherical object that varies in size, typically ranging from a few centimeters to several meters in diameter. Witnesses often report seeing these glowing orbs during or after thunderstorms, sometimes floating through the air or moving unpredictably. Unlike ordinary lightning, which lasts for mere milliseconds, ball lightning can persist for several seconds, making it even more mysterious and intriguing.

The phenomenon has been reported for centuries, with one of the earliest accounts dating back to the 12th century by a Benedictine monk in Canterbury. Despite hundreds more sightings since then, scientists have struggled to explain the exact nature of ball lightning, leading some to question whether it is real, an optical illusion, or even a hallucination.

Is Ball Lightning Real?

The question “Is ball lightning real?” has long sparked debate among scientists and skeptics alike. While skeptics argue that ball lightning could be a misinterpretation of more common phenomena, many scientists believe it to be a genuine natural occurrence.

One reason for skepticism is the lack of reliable, reproducible evidence. Ball lightning is incredibly rare and unpredictable, making it difficult to study in a controlled environment. However, advancements in technology have provided some intriguing clues. For instance, in 2014, Chinese scientists captured what they believe could be ball lightning on video during a thunderstorm, providing the first potential scientific documentation of the phenomenon.

Moreover, laboratory experiments have managed to create ball lightning-like effects under certain conditions, lending credence to the idea that this phenomenon is real. While these experiments do not perfectly replicate natural ball lightning, they do suggest that it could be a physical phenomenon rather than just a trick of the eye or mind.

Read More: How Humans Perceived Lightning Throughout Time

What Does Ball Lightning Look Like?

Reports of what ball lightning looks like vary widely, but most accounts share common characteristics. Witnesses often describe it as a bright, glowing sphere that is often colored red, orange, yellow, or blue. The size of the sphere can also vary, with some accounts describing it as smaller than a golf ball, while others report it as being larger than a beach ball.

Ball lightning is often described as moving erratically, sometimes slowly floating through the air or even passing through solid objects like windows or walls. Some accounts also mention a hissing or crackling sound accompanying the phenomenon, while others report an acrid smell, possibly from ozone or burning materials.

What Causes Ball Lightning?

If ball lightning is real, what causes it? That remains one of science’s many longstanding mysteries. However, several hypotheses have been proposed. One hypothesis is that ball lightning forms when a lightning strike ionizes particles in the air, such as atmospheric gases or water vapor, creating a clump of ionized plasma that glows as it dissipates.

Another posits that ball lightning might be caused by the vaporization of materials on the ground, such as silicon, during a lightning strike. These vaporized nanoparticles, drawn together by electrical charges, then form a glowing ball of plasma as they are slowly oxidized in the air, emitting light and heat.

Unfortunately, despite these intriguing hypotheses, there is no consensus on what exactly causes ball lightning. The phenomenon remains difficult to study due to its rarity and unpredictability, and more research is needed to fully understand the mechanisms behind it.

Read More: The Science Behind Lightning Scars and Strikes

How Rare Is Ball Lightning?

While thunderstorms are relatively common, the specific conditions necessary for ball lightning to occur are believed to be extremely rare. This rarity has fueled the intrigue surrounding the phenomenon, captivating both scientists and the public. Whether ball lightning is a natural event or an illusion remains a topic of debate, but its allure as one of nature’s strangest mysteries persists.

Despite the ongoing mystery, the abundance of eyewitness reports and indirect evidence points to the possibility that ball lightning is indeed real. As researchers continue to investigate and technology continues to advance, we may one day unravel the mechanisms behind this elusive phenomenon. Until then, ball lightning remains one of the most compelling enigmas in atmospheric science.

Is Ball Lightning Dangerous?

While most reports suggest that ball lightning is relatively harmless, there have been instances where it has reportedly caused damage or injury. Some witnesses have reported minor burns or electrical shocks after coming into contact with ball lightning. Others have described fires being started by the phenomenon, such as on the ship HMS Warren Hastings more than 200 years ago, which killed several people.

However, these incidents are rare (and unverified), so the overall danger posed by ball lightning seems to be minimal. Nonetheless, if you ever do happen to encounter ball lighting, your best bet is likely to keep your distance — at least until scientists understand what it actually is.

Read More: How To Stay Safe During Lightning Storms – Summer Is The Highest-Risk Season

If you or someone you know thinks they may have seen or pictured ball lightning, you can help researchers in their quest to figure it out by reporting your ball lighting sighting online.

Article Sources

Our writers at Discovermagazine.com use peer-reviewed studies and high-quality sources for our articles, and our editors review for scientific accuracy and editorial standards. Review the sources used below for this article:

Jake Parks is a freelance writer and editor who specializes in covering science news. He has previously written for Astronomy magazine, Discover Magazine, The Ohio State University, the University of Wisconsin-Madison, and more.