Should we spend valuable resources on space exploration?
Even a fraction of the money spent annually on space exploration could save millions of people in poverty-stricken countries, and improve living conditions for future generations. The foundations of the world we live in are largely based on science and it is indeed vital to extend our knowledge of the universe.
Why does water form a ball in space?
Whether water sits in a lake or a glass of water, Earth’s gravity pulls the liquid downward into the shape of the container it’s in. Up there, surface tension between the tight-knit group of water molecules forms the smallest possible area–a sphere. On Earth, gravity distorts the shape, but not in space.
Is there water on Mars?
Almost all water on Mars today exists as ice, though it also exists in small quantities as vapor in the atmosphere. What was thought to be low-volume liquid brines in shallow Martian soil, also called recurrent slope lineae, may be grains of flowing sand and dust slipping downhill to make dark streaks.
How does water behave in space?
A water drop and air bubble in outer space. Consider what would happen on Earth: The air bubble, lighter than water, would race upward to burst through the surface of the droplet. In space, the air bubble doesn’t rise because it is no lighter than the water around it—there’s no buoyancy.
Is space exploration a waste of time and money?
For: Investing in further scientific exploration of space is a waste of resources. The amount of money being spent on space research is in the billions and it has achieved extraordinarily little except for a bit of improved technology which would probably have come about anyway by other means.
What happens to water in space station?
Rationing and recycling will be an essential part of life on the International Space Station. All of the denizens of the space station lose water when they exhale or sweat. Such vapors add to the ambient cabin humidity, which is eventually condensed and returned to the general water supply.
How is water made in space?
Water, which is made of oxygen and hydrogen atoms bonded together, is also used to maintain oxygen supply on the International Space Station. Using a process called electrolysis, which involves running electricity through water, astronauts and cosmonauts are able to split the oxygen from the hydrogen.
What happens to astronauts when they return from space?
In space, astronauts lose fluid volume—including up to 22% of their blood volume. Upon return to earth, the blood begins to pool in the lower extremities again, resulting in orthostatic hypotension.”
Does water freeze in space?
The surprising answer is it does both: first it boils and then it freezes! We know this because this is what used to happen when astronauts felt the call of nature while in space.
Why do we spend so much money on space exploration?
4. The Economy – NASA does not launch buckets of cash into space. The majority of the money spent on space exploration goes toward the salaries of thousands of skilled American workers who make NASA’s missions so successful. For more on this, and its connection to the recent Mars rover budget scare, check this post.