NICE TO KNOW. #Water
is very important to #life
as we know it. All biological processes simply take place in it. Being a polar #molecule,
water is an universal #solvent
which is used to transport nutrients to your #cells,
removing any waste products. Indeed we’re made up of over 60% of water. That’s why scientists are very fond of finding liquid water on exoplanets, when looking for other forms of life. However, it’s not that easy to find water flowing on the surface of a planet. This is because the #atmosphere
plays a crucial role. The thinner it is, the sooner water will boil. Take #Mars
for example. There’s strong evidence that liquid water existed on the planet’s surface billions of years ago. Nowadays, that’s not possible. The atmosphere has become so thin that water boils at only 10°C. And with a temperature ranging from -60°C to 20°C, when water seeps through the frozen rocks that cover the surface, it vaporizes quickly. Sometimes #ice
might even #sublime.
So next time they dare you to enjoy a hot tea on the Everest, where water boils at 70°C, tell them to try to enjoy one on the Red Planet. Anyone fancying an ice tea?
Image: Salty Water seeping through the walls of Mars' Grani crater.
#like4like #follow4follow #facts #cosmos #stars #planets #astronauts #spaceexploration