Dark Matter Does Matter! | National Geographic

we know that there’s this mysterious
matter this extra mass out there but we
can’t quite put our finger on it we
don’t know exactly what it is it’s ghost
matter it doesn’t glow it doesn’t
reflect light but it adds to the
gravitating mass of objects and if such
a clump of material passes through or
near our solar system its gravitational
force could have a profound effect it is
our conclusion that these perturbations
are being caused due to a concentration
of dark matter near our solar system it
would pull gravitationally on all of the
planets and offset the planets from
their current rather delicate orbits in
time this instability could grow were
and manifest itself as orbits that
slowly expand so what would happen if
Earth’s orbit was altered taking us out
of the only path that Earth’s life has
ever known
our very existence is made possible
because we happen to live at the perfect
distance from the Sun this thin band of
livable space is known as the Goldilocks
zone it’s not too hot it’s not too cold
for all life on earth it’s just right
if earth would have leave the Goldilocks
zone life for humankind and everything
we know would be changed forever the
size of the orbit was to grow then the
winters would get much much colder and
the global temperatures would drop
significantly projections show that
Earth’s orbit will continue to spiral
away from the Sun as it does earth’s
temperature will fall it will drop one
degree per year in 20 years it will be
freezing at the equator 96 years from
now the average global temperature could
be minus 430 degrees