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  • What occurrence would you call rare?

  • A one in a million chance?

  • A once in a lifetime moment?

  • Nah, that’s child’s play!

  • What about something that happened only once or twice in history?

  • That’s a challenge worthy of a true wonder seeker.

  • So check out my list: 1) The Mississippi running backward

  • Starting with something not quite as rare as you might think, let’s examine one of

  • the most famous rivers in the US.

  • This fame comes from the sheer size and power of the Mighty Mississippi.

  • It goes through 10 states and more than 900,000 gallons of water pass through it every second.

  • Rivers can’t naturally turn back at all!

  • Well, it looks like they can, and even the Mississippi River has been spotted running

  • backward not once, but three times.

  • The first time it happened, in 1812, the river stood still and then went backward because

  • of a so-calledfluvial tsunami’, which originated from an earthquake nearby.

  • The other two times were relatively recent, in 2005 and 2012, the Mississippi turned its

  • flow back because of monstrous hurricanes.

  • The 2nd one, caused by Hurricane Isaac, made it go backward for 24 hours at an even faster

  • pace than usual.

  • 2) Catching a real-life Kraken Once a horror from ancient myths and legends,

  • this colossal creature is no longer part of a dream world, but a fact of reality.

  • Some time ago, even its lesser sibling, the giant squid, was nothing more than just a

  • tale you’d hear about from an old sailor or fishermen.

  • But since more and more giant-sized beaks were found in the stomachs of sperm whales

  • known to fight and eat these huge creatures, scientists considered giant and colossal squids

  • to be a real deal.

  • Yet, until 2007 there was no other evidence of their existence except beaks.

  • On February 22nd, 2007, fishermen on the San Aspiring ship became the first and only to

  • capture a thousand pound squid alive.

  • They were able to catch the sea monster in nets and freeze it for further study.

  • Funny thing is that this colossal squid appeared to be a small one, even at 15 feet total length.

  • The beaks that were found before were much larger than its beak, so we can assume for

  • sure that the mythical Kraken is out there somewhere in the deep.

  • Oh let’s go on a cruise!

  • 3) Going to the borders of the Solar System and beyond

  • Voyager 1 and Voyager 2 are two of the greatest achievements in any space programs ever conducted

  • on the Earth.

  • Both of these spacecraft are research vessels aimed at going as far out in our Solar System

  • as they can, (far out!) and the results are stunning.

  • Voyager 1 is the first space probe to go beyond the borders of our sun’s magnetic field

  • and gravity pull.

  • And the following one, Voyager 2, was the first to pass by the farthest planets we know

  • to exist in our proximitythe ice giants, Uranus and Neptune.

  • Voyager 2 discovered 11 moons around Uranus that were never seen before.

  • It also took a close look at its rings and the higher layers of its atmosphere.

  • Three years later, in 1989, it also found rings and 6 new moons around Neptune.

  • Now the probe is in interstellar space and its mission is finally accomplished.

  • Well keep receiving weak radio signals from Voyager 2 until 2020, and then itll

  • fly towards other stars on its own.

  • 4) River Piracy Stealing is bad enough as it is, but stealing

  • a whole river with all of its water which is crucial for the environmentthat’s

  • some super-villain level of crime here!

  • Good thing it happened only once for as long as humanity can remember, and it wasn’t

  • actually an intentional action.

  • Instead, it was the result of the Kaskawulsh Glacier in Canada melting, opening a way for

  • water to go on a course from the Slims River to the flow of the Alsek River.

  • It took only 4 days in 2016 for the Slims River to almost completely dry out because

  • of this event, which is certainly one of the rarest occurrences ever.

  • 5) TheWow!’

  • Signal Let’s face it, if there’s one unique event

  • we’d all want to witness, it’s to meet some real aliens!

  • Unfortunately, were as far from this moment as ever; we still haven’t found any tangible

  • proof of their existence.

  • Except for one single moment in our history.

  • On August 15, 1977, astronomer Jerry Ehman was going through his normal routine at the

  • Big Ear radio telescope at Ohio State University.

  • But then he caught a strange radio-sequence in a usually unintelligible wall of radio

  • noise.

  • But this signal was 72-seconds long, and powerful.

  • It provided no information, and scientists couldn’t decode anything, but the source

  • of the signal was never figured out.

  • One thing is for sure: it has no natural explanation, nor can it be explained as a part of human

  • interaction or a malfunction of a radio telescope.

  • This is the only probable clue we ever got that points to the existence of extraterrestrial

  • civilizations.

  • 6) Tunguska Meteorite Explosion Meteorites didn’t just fall to the Earth

  • once or twice.

  • We all know how it went with the dinosaurs, I guess.

  • But this one is really special because it happened not so long ago and in close range

  • to human settlements.

  • On June 30th, 1908, in Russia’s Central Siberia, an object went through the atmosphere

  • of the planet and then exploded right over the tops of the trees.

  • The echo was heard over 500mi away from the explosion itself, which wiped out more than

  • 800mi2 of the forest.

  • Strangely enough, there was no crater and no other major destruction caused by this

  • event.

  • It left scientists scratching their heads over the question of what this meteor really

  • was.

  • 7) Niagara Falls dried out The crown of American Falls may well be a

  • symbol of reliance.

  • Other nearby waterfalls go frozen or dry regularly, but finding one day that Niagara Falls itself

  • was gone, was probably the scariest event in someone’s life.

  • No wonder this image gave birth to quite a few superstitions and prophecies about the

  • end of the world happening in the near future.

  • It happened in 1848, when a particularly powerful ice-cold wind led to a build-up of snow and

  • ice up the river from Niagara Falls.

  • This eventually led to the formation of a huge ice dam that blocked the water entirely

  • for a little more than a day and left the riverbed dry.

  • In 1964, an ice boom was installed in Lake Erie to prevent something like that from happening

  • again, so we can be sure that this was the one and only time Niagara Falls would ever

  • dry out.

  • 8) The Carrington Event Auroras, also called northern lights, are

  • a miracle specific to only the Northern regions of the world, except on the 1st day of September

  • 1859.

  • That day, auroras of all shapes, sizes, and colors filled the sky in half of the world,

  • going as far south as Jamaica, Hawaii, and Cuba.

  • The first to witness it, and theorize about why this happened, was astronomer Richard

  • Carrington.

  • He was inspecting sunspots on the surface of the sun and noticed two big spots that

  • produced an immense light.

  • He suggested that those spots were the reason why the auroras were so intense, and he was

  • right.

  • This event was a super solar flareone of the rarest occurrences in our relationship

  • with the sun.

  • And that scarcity is good for us.

  • Maybe it didn’t do much damage back in the 19th century, but today a similar flare would

  • damage a lot of electronic equipment.

  • Let’s hope well be ready for the next one, and will just enjoy the view!

  • 9) Observing the rarest thing possible Everything else will be more frequently occurring

  • than this one, because I’m talking about the recorded moment of the radioactive decay

  • of the most stable element in the Universe.

  • Xenon-124, the sturdiest tiny brick in the fabric of reality.

  • It takes more time for an atom of xenon-124 to fall apart than has passed since the Big

  • Bang – a trillion times more time, to be fair.

  • Xenon is so stable, that it won’t react with any other element, and itll ignore

  • almost any kind of radiation.

  • It’s the perfect candidate to make a unique sensor to find an entirely different mystery

  • of reality: elusive dark matter.

  • What else would you use to find a form of matter that won’t react with anything, if

  • not the most inert and stable element in the world?

  • But instead of dark matter, they saw the very process of xenon-124’s decay.

  • Maybe it’s not the result scientists were looking for, but at least their sensors won’t

  • fail them ever again.

  • Hey, I think we’d all like to decay a little slower, don’t you thnk?

  • Now, if you learned something new today, then give the video a like and share it with a

  • friend!

  • And here are some other cool videos I think you'll enjoy.

  • Just click to the left or right, and stay on the Bright Side of life!

What occurrence would you call rare?

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