Sentences with phrase «not have liquid water on the surface»

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.
a b c d e f g h i j k l m n o p q r s t u v w x y z