Pluto
-
The
Mysterious
Planet
in
Our
Solar
System Pluto,
the
smallest
and
the
least
explored
planet,
has
always
been
shrouded
in
mystery.
It
was
discovered
in
1930
by
Clyde
Tombaugh,
and
for
several
decades,
it
was
considered
the
ninth
planet
of
the
solar
system.
However,
in
2006,
the
International
Astronomical
Union
(IAU)
demoted
it
to
a
"dwarf
planet"
due
to
its
size
and
orbiting
pattern.
Nevertheless,
Pluto
still
remains
an
intriguing
celestial
body,
and
scientists
continue
to
study
it
to
learn
more
about
our
solar
system. Pluto
is
located
in
the
Kuiper
Belt,
a
region
in
the
outer
part
of
our
solar
system
that
is
home
to
many
icy
objects.
It
has
a
diameter
of
only
2,377
kilometers,
making
it
smaller
than
Earth's
moon.
Because
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its
distance
from
the
sun,
Pluto
has
a
very
cold
and
icy
surface,
with
temperatures
averaging
around
–240°C.
The
planet's
atmosphere
is
primarily
composed
of
nitrogen,
with
some
traces
of
methane
and
carbon
monoxide. One
of
the
most
interesting
features
of
Pluto
is
its
five
known
moons:
Charon,
Nix,
Hydra,
Kerberos,
and
Styx.
Charon
is
the
largest
moon
and
is
almost
half
the
size
of
Pluto.
Charon
and
Pluto
are
close
enough
that
they
gravitationally
interact
with
each
other,
making
their
orbits
elliptical
rather
than
circular. Pluto's
surface
also
harbors
some
striking
geological
features,
including
mountains,
valleys,
and
craters.
Some
of
these
features
may
have
formed
due
to
tectonic
activity
caused
by
the
gravitational
pull
of
Charon. Several
NASA
missions,
including
the
New
Horizons
spacecraft,
have
provided
valuable
insights
into
Pluto's
mysteries.
In
2015,
the
New
Horizons
flew
past
Pluto,
taking
high-resolution
images
and
measurements
of
the
planet
and
its
moons.
The
mission
revealed
several
unexpected
discoveries,
such
as
a
vast
heart-shaped
plain
on
Pluto's
surface
called
Tombaugh
Regio. In
conclusion,
despite
its
small
size
and
remote
location,
Pluto
remains
a
fascinating
planet
with
much
to
discover.
Further
study
and
exploration
of
Pluto
and
the
Kuiper
Belt
will
undoubtedly
provide
new
insights
into
the
formation
and
evolution
of
our
solar
system.