What If the Sun Never Went Down Again

What If the Sun Never Went Down Again
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    From our "What Keeps Us Up at Night" Department comes this question.
    Are you one of us?
    A curious soul who can't live without asking yourself all kinds of deep, thoughtful -- or
    even crazy hypotheticals?
    Like, why do birds fly, what if the sun never set?
    Where did Rocky Road ice cream get its name?
    Hmm... anyway, why don't we try to figure out the one about the sunset thing?
    Alright, so if the sun doesn't look as if isn't going to set anytime soon, and it's
    been already several days, I'm guessing the planet has probably stopped spinning.
    And this leaves us with all kinds of disturbing notions.
    The first thing you would feel if Earth stopped spinning would be a mighty jerk.
    Our planet rotates at a velocity of 1,037 miles per hour!
    That's twice as fast as the average speed of a commercial jet and how quickly rumors
    spreads on Twitter.
    But since you rotate along with the planet and everything else on it, you don't notice
    this at all.
    So now, imagine this: a car is accelerating along the highway at a tremendous speed, and
    then the driver suddenly slams on the brakes.
    What's going to happen?
    Everything and everybody inside the car will be thrown forward, and the passengers are
    lucky if they are wearing seat belts!
    But you wouldn't have a seat belt on when Earth stopped spinning.
    That's why you, along with billions of other people, would fly into the air at a speed
    of 1,037 miles.
    That's incredibly fast, but even this speed is still not enough to launch you in space.
    That's why, unfortunately, you'll be only flying over the surface of the planet.
    Until you hit something – going a thousand miles an hour.
    Now the fact that Earth has stopped spinning would mean nothing for the atmosphere, which
    would keep moving for a while.
    This would make for winds and waves you've never seen before, even on TV.
    These gusts and tsunamis would wreak massive destruction by wiping away buildings and cars,
    children's playgrounds and trees.
    But you know the worst thing that would happen?
    The winds would damage and erode the earth's crust.
    Then, any break in Earth's spinning would mess up gravitation.
    As a result, your "down" after the planet stopped rotating would feel like it was at
    a 38-degree angle from the previous vertical "down."
    And it would knock down the rest of the buildings and vertical constructions.
    Now the Earth's spin creates a force which keeps oceans in place.
    If Earth stopped, all the water in the seas and oceans would tend to head toward the poles.
    There would be one massive supercontinent around the equator with south and north poles
    having turned into oceans.
    Many countries, such as Canada and Greenland, and a big part of Europe and Asia would go
    underwater.
    Also, without rotation, the dark side of our planet would be freezing while the bright
    side would be boiling.
    The constant sunlight would heat the planet until the temperature rose above boiling at
    212 degrees F. The central supercontinent at the equator would get the most heat.
    As a result, rivers and lakes would boil away.
    Thus, any semblance of life would remain only along narrow strips of land near the coast.
    But wait, there's more: Earth stops spinning, its gravity doesn't function anymore, and
    the next thing you have, should you survive this so far, is there's no atmosphere (which
    is usually kept in place by the planet's gravitation force).
    You probably know that the atmosphere protects the planet from cosmic radiation.
    That's why the consequences of losing the atmosphere would be – shall we say, bad!
    Our beautiful green planet would turn into a lifeless lump of rock.
    Well, that's a pretty scary scenario!
    Luck for you, it's HIGHLY unlikely to happen, and even if it did, it would take Earth around
    1.9 trillion years to stop existing.
    So, you still have time to make your dreams come true and accomplish stuff and binge-watch
    Bright Side and 5 minute Crafts.
    But hold on -- this isn't the only catastrophic scenario which pops up in my head at night.
    What about this: what if the Sun suddenly turned into a black hole?
    Would our planet get sucked inside and disappear?
    Well, research indicates this won't happen.
    It turns out that the Sun isn't big enough to turn into a black hole!
    It's huge alright, but a star needs to be ten times bigger than the Sun to finally condense
    into a black hole.
    And even if the Sun managed to get the status of a black hole, it would be a itty bitty
    one, just 4 miles across.
    So that means that the gravitational force of this baby black star wouldn't exceed its
    current amount.
    The Sun wouldn't contain more matter than it has now, and it wouldn't move closer to
    the planets.
    So Earth wouldn't get sucked inside, and we're all relieved.
    Only there wouldn't be this warm ball of light in the sky anymore, and the planet would freeze.
    Ice would cover its surface, the atmosphere would fall on the planet as cold liquid rain,
    and the world would turn into one huge freezer.
    But your beer would stay cold.
    Okay.
    But wait, what if a stray black hole entered the Solar System?
    Would it be able to swallow Earth?
    Don't I really need to get some sleep?
    Although the black hole would be thousands of times smaller than Earth, its mass would
    that much greater.
    You wouldn't see the approach of the black hole, but you might notice our neighboring
    planets disappear one by one.
    You'll also notice your neighbors disappearing too.
    Whoops there goes another one!
    As soon as the black hole reached the asteroid belt between Jupiter and Mars, Earth would
    already start to feel its gravitational pull.
    It would begin to tear the planet apart causing volcanic super-eruptions and catastrophic
    earthquakes.
    Even before the black hole reached our planet, Earth would already look like an uninhabitable
    magma-laden chunk of rock.
    I am somewhat relived by the math that the possibility of a stray black hole devouring
    our planet is one in a trillion.
    Worse odds than the super lotto.
    So let's move to the next troublesome question: what if the Sun threw up – I mean blew up?
    If it happened one day, our yellow star would turn into a much cooler red giant.
    During this transformation, the Sun would consume Venus, Mercury, and Earth.
    At least, we wouldn't have to suffer for long, since the catastrophe would take no more than
    one day.
    At first, you would be oblivious to the solar explosion that's just happened.
    It takes sunlight 8 minutes and 20 seconds to reach Earth.
    That's why if the Sun blew up, you wouldn't realize it for - you've probably already guessed
    - precisely 8 minutes and 20 seconds.
    That's why I'm leaving with the Dolphins before it happens.
    So long and thanks for all the fish.
    If the Sun exploded, it would shoot out a huge amount of very powerful energy.
    As soon as it reached the planet, this energy would wipe all life forms off the surface
    of Earth.
    But gee, let's imagine that our planet managed to somehow survive and even keep going without
    the light from the Sun.
    Unfortunately, the left-over radiation would make sure that nobody and nothing survived
    the disaster.
    Besides, Earth wouldn't have its ozone layer anymore, and, therefore, there would be nothing
    to protect the planet from cosmic radiation, high temperatures, and other dangerous stuff
    coming from space.
    Well, there's no way to spin this to a happy ending, is there?
    As you see, it's in our best interest to keep the Sun safe.
    But what if a gigantic comet crashed into our star?
    Would the Sun suffer from such a collision?
    Would you like to lock me up in the garage now?
    First of all, to reach the Sun's lower atmosphere, the comet needs to be not just massive but
    really-massive!
    If a comet was big enough and it happened to pass close to the Sun, the star's gravity
    would catch it and accelerate its steep fall up to 373 miles per second.
    As a result, the comet would get flattened like a pancake even before it reached the
    lower atmosphere.
    A few moments later, the comet would explode and release X-rays and ultraviolet radiation.
    It would look as if a bomb was blown up on the Sun.
    With a gigantic comet, the collision might even cause sun-quakes in the solar atmosphere.
    But according to scientists, people wouldn't feel even the slightest echo of this event,
    so, I guess, there's no point in worrying about this scenario.
    Alright I feel better now, no more doom and gloom -- until tomorrow night…
    Hey!
    Do you have any other what-if questions left unanswered?
    Go ahead and write about them in the comment section below and let's discuss them together!
    Remember to hit the like button, share this video with your curious friends, and subscribe
    to the channel to move to the Bright Side of life!
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