Following
several
successful
explorations
into
space
,
several
companies
are
now
considering
the
possibility
of
enabling
tourists
to
visit
____________________
.
In
order
to
make
it
more
affordable
,
suborbital
space
travel
is
being
considered
by
many
companies
,
including
Virgin
Galactic
.
Whilst
it
could
be
an
enriching
experience
,
there
are
some
____________________
to
space
tourism
.
Many
critics
have
commented
that
a
huge
growth
in
the
spaceflight
industry
could
____________________
speed
up
the
process
of
global
warming
.
The
ozone
layer
would
be
damaged
further
,
and
the
polar
regions
would
suffer
.
In
addition
,
space
____________________
is
only
really
a
possibility
for
the
super
-
rich
.
____________________
Virgin
Galactic
claims
to
be
"
opening
space
to
the
rest
of
us
"
,
there
are
still
millions
of
people
____________________
who
wouldn't
be
able
to
afford
it
.
