planets
Mercury
a black dwarf) as
and Venus be-
its orbit decays
fore deflat-
Ultimately the uni-
ing into a
verse will continue
w h i t e
to
d w a r f
everything in it is
1.6
expand
until
bil-
dead. All matter
lion years
will be so spread
later.
out than, in essence,
About
150
nothing will remain
billion years lat-
and the cosmos will
er, changes on the
be completely emp-
scale of the universe
start to take place.
years, when our ty, says Hanson
sun runs out of gas,
One
As the universe ex- it starts to expand years
pands,
we
would and consumers the what
lose sight of all gal- inner planets Mer- planet
quadrillion
from
now,
remains
of
Earth
is
axies from Earth if cury and Venus be- pulled into the black
we were still around fore deflating into a dwarf that is now
as they are too dis- white dwarf 1.6 bil- the sun as its orbit
tant for their late to lion
years
later decays.
reach us.
Further ahead from
At the trillion-year In 110 trillion years this point, however,
mark,
stars
forming,
and
stop all stars will have seems to be a bleak
110 died out while in a future for the uni-
trillion years all of quadrillion years our verse.
the stars will have planet, now a life-
This is, of course,
exhausted their en- less hunk of rock, just one theory for
ergy
outIn
and
7.9
flickered will fall into what is the end of the unibillion left of the sun (now verse.