It's AumSum Time.
Why doesn't Earth have rings like Saturn?
Because earth is not engaged.
No.
First, let's see what are the rings of Saturn
made of?
They can be remnants of a moon, comet, etc.
That got ripped apart due to Saturn's gravitational
pull.
Or result of a large collision between two
moons.
Some even claim that rings are made up of
debris.
Left over during the formation of our solar
system.
So, how did this debris form Saturn's rings?
It's got to do with Roche limit.
It is the distance at which objects tend to
be ripped apart.
By the planet's gravitational pull.
Now, in case of Saturn, it is popularly believed
that.
A celestial body like moon or comet got too
close to it.
And exceeded the Roche limit.
Hence, it got ripped apart into pieces, thus
forming its rings.
Now, earth also has a moon.
But since it is beyond the Roche limit.
It doesn't get ripped apart into pieces to
form rings.
Diamonds.
Diamonds.
Oh.
Where did they go?
But scientists believe that it can actually
rain diamonds on Jupiter and Saturn.
These planets have methane rich atmospheres.
During storms, lightning turns methane in
clouds into soot.
As soot begins to fall, it is subjected to
intense temperatures and pressures.
These conditions squeeze the soot into chunks
of graphite.
As the pressure increases, graphite is compressed,
making it literally rain diamonds.
Why does Saturn have rings?
Because it has got engaged.
No.
Scientists don't exactly know why Saturn has
rings.
But they think that it is related to Roche
limit.
What is Roche limit?
Roche limit is the distance from the planet
at which.
Objects in orbit around the planet.
Tend to be ripped apart by the planet's gravitational
pull.
Now based on the Roche limit.
One of the prevailing theories is that Saturn's
rings are.
Remnants of celestial bodies like a moon or
a comet.
Billions of years ago.
A celestial body may have got too close to
Saturn.
Exceeding the Roche limit.
Hence, its side facing the Saturn was pulled
more strongly.
As compared to the side facing away.
So, this inconsistent gravitational pull.
May have ripped part the celestial body into
pieces.
Finally, these pieces might have started revolving
around Saturn.
Forming its beautiful rings.
Why is Pluto not a planet anymore?
Because I am not silly anymore.
Ya ya.
Now listen.
Pluto was discovered by Clyde Tombaugh in
1930.
It is not considered a planet anymore because
in 2006.
Astronomers of IAU gave a new definition to
the word planet.
According to the new definition, a planet
is a celestial body.
Which is in orbit around the sun.
Is spherical in shape.
And it has cleared the neighborhood around
its orbit.
What does this mean?
It basically means that using its gravity.
A planet should have removed asteroids and
dwarf planets, out of its path.
Thus cleared its neighborhood.
Now, Pluto is in orbit around the sun and
is spherical in shape.
But since Pluto's neighborhood has many other
objects.
And it has not cleared its neighborhood.
It is not called a planet anymore.
