Point 3 — There was division of waters, especially since you can
not have liquid water on the surface of the earth without a sun to provide heat.
Not exact matches
ne = the number of habitable planets around each star In days gone by, scientists
would speak solemnly about our solar system's «habitable zone» — a theoretical region extending from Venus to Mars, but perhaps
not encompassing either, where a planet
would be the right temperature to
have liquid water on its
surface.
It can
not tell us if the planets are rocky,
have oxygen in their atmosphere, or hold
liquid water on their
surface.
Under red dwarf stars, plant - type life
on land may
not be possible because photosynthesis might
not generate sufficient energy from infrared light to produce the oxygen needed to block dangerous ultraviolet light from such stars at the very close orbital distances needed for a planet to be warmed enough to
have liquid water on its
surface.
Sure, Gliese 1132b isn't «Earth - like» by any stretch of the imagination — it's hot, probably toxic,
has a day as long as a year and
liquid water can't exist
on its
surface — but the fact that it
has an atmosphere at all provides clues that other red dwarf exoplanets are likely out there with their own atmospheres able to resist the onslaught of their ferocious stars.
It speaks to the very heart of trying to understand how life may
have evolved
not just
on earth but
on other terrestrial bodies both in our own solar system and indeed around other stars that
have planets that lie in the so - called «habitable zone» (where
liquid water can exist
on the
surface).
Such a weak star
would not have been able to sustain
liquid water on the Earth's
surface, and thus life should
not have been able to develop.
First, conditions
on Mars are such that any
water reaching the
surface supposedly
would not remain
liquid for very long but
would boil, freeze, or poof into vapor.
Experiment 1 demonstrates that incident LWIR
on the
surface of
liquid water does
not have the same effect
on cooling rate as it does
on other materials.