p. What chemicals appear to exist on the surface?
They've also seen life-forms that don't exist on the surface, including a blind, translucent, lobster-shaped mini-crustacean called a cave crayfish.
HLA stands for Human Leukocyte Antigen, and describes a series of proteins that exist on the surface of all cells in your body, and which is defined genetically.
This meant that liquid water could not exist on the surface of CoRoT-7b, so the possibility of its harbouring life as known on Earth was highly unlikely.
Besides physically adsorbed water, terminal OH groups, bi-bridging and tri-bridging OH groups exist on the surface of YSZ.
Quarantine of live rock imports is necessary because marine organisms, such as jellyfish polyps, which exist on the surface of coral rock, pose a potential threat to the marine environment if released.
But persistent speculation, based on huge canyons and channels carved in parts of the surface, is that the atmosphere was once thick and warm enough to allow liquid water to exist on the surface.
Though the planet is a giant ball of gas, liquid water could exist on the surface of a moon or on other, rocky planets that may yet be found within the zone.
FT-IR spectra show that carboxyl groups exist on the surface of the OCNF, which greatly influence the morphology and crystallinity of the electrocatalysts.
So confirmation of the team's discovery would boost the odds that more worlds are circling Alpha Centauri B, perhaps even in the so-called habitable zone where the temperature would allow liquid water to exist on the surface.
