The hydrogen ends of the molecule are positive and the oxygen end is negative. This causes water molecules to attract each other and other polar molecules. This attraction between water molecules can be seen on a smooth surface such as glass, where water beads up.

Cohesion makes a water drop a drop For water, this state happens when a water molecule is surrounded on all sides by other water molecules, which creates a sphere or ball (perfectly round if it was in outer space). On Earth, the effect of gravity flattens this ideal sphere into the drop shape we see.

Whether water sits in a lake or in a glass, Earth’s gravity pulls the liquid downward into the shape of the container it’s in. But in space, gravity’s effects are different. On Earth, gravity distorts the shape, but not in space.

While the zero gravity atmosphere does not have an impact on tears forming, it has an affect on if they fall, and they don’t. The water that builds up in you eye from crying will stay there until the bubble gets so big it moves to another spot on your face, or it’s removed. It’s not very pretty or graceful.

Astronauts on deep-space missions could recycle their own feces to make food. Researchers built this cylindrical piece of equipment to help transform poo into edible microbes. It’s a long way to Mars, and astronauts will need to eat. including poop.

Today, astronauts at the International Space Station poop into a little plate-sized toilet hole, and a fan vacuum-sucks their excrement away. A separate funnel equipped with a fan suctions their pee away.

Eliminating Waste Each spacewalking astronaut wears a large, absorbent diaper called a Maximum Absorption Garment (MAG) to collect urine and feces while in the space suit. The astronaut disposes the MAG when the spacewalk is over and he/she gets dressed in regular work clothes.

On the ISS, astronauts do not shower but rather use liquid soap, water, and rinseless shampoo. They squeeze liquid soap and water from pouches onto their skin. Then they use rinseless soap with a little water to clean their hair. They use towels to wipe off the excess water.

Flying through outer space has dramatic effects on the body, and people in space experience aging at a faster rate than people on Earth. Several papers recently published in the Cell family of journals look at the health hazards that spending time in outer space has had on astronauts.

Venturing into the environment of space can have negative effects on the human body. Significant adverse effects of long-term weightlessness include muscle atrophy and deterioration of the skeleton (spaceflight osteopenia).

Salary Salary US NASA Astronaut – Experienced Currently, a GS-12 starts at $65,140 per year and a GS-13 can earn up to $100,701 per year. – Nasa in 2016: Salaries for civilian Astronaut Candidates are based upon the Federal Government’s General Schedule pay scale for grades GS-11 through GS-14.

Not every STEM (science, technology, engineering and math) degree will qualify you to be an astronaut. NASA is looking for people with a degree in engineering, biological science, physical science (like physics, chemistry or geology), computer science or mathematics.

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