Last Updated：2025/12/06
(cosmology, astrobiology, astronomy) An era of a Big Bang based universe with the physical laws of our Universe, where the cosmic microwave background is energetic enough to heat water into a liquid state, making all bodies beyond the inner limit of the habitable zone possible in hosting liquid water regardless of the amount of insolation provided by the local star.
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habitable epoch
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Source Word
habitable epoch
Noun
uncountable
(cosmology,
astrobiology,
astronomy)
An
era
of
a
Big
Bang
based
universe
with
the
physical
laws
of
our
Universe,
where
the
cosmic
microwave
background
is
energetic
enough
to
heat
water
into
a
liquid
state,
making
all
bodies
beyond
the
inner
limit
of
the
habitable
zone
possible
in
hosting
liquid
water
regardless
of
the
amount
of
insolation
provided
by
the
local
star.
Japanese Meaning
宇宙論や天体生物学の文脈で、ビッグバンに基づく宇宙が現在の物理法則の下で進化する過程の中で、宇宙背景放射が水を液体に温めるのに十分なエネルギーを持つ時代を指す。つまり、局所的な恒星からの入射放射量に関係なく、内部限界を超えたあらゆる天体が液体の水を保持できる可能性があることから、生命が存在できる条件を満たす時期を意味する。
Sense（1）
(cosmology,
astrobiology,
astronomy)
An
era
of
a
Big
Bang
based
universe
with
the
physical
laws
of
our
Universe,
where
the
cosmic
microwave
background
is
energetic
enough
to
heat
water
into
a
liquid
state,
making
all
bodies
beyond
the
inner
limit
of
the
habitable
zone
possible
in
hosting
liquid
water
regardless
of
the
amount
of
insolation
provided
by
the
local
star.
