Astronauts

The oxygen in a spacecraft is recycled through a chemical process that removes the carbon from the carbon dioxide we breathe out. Very much the same as the underwater "re-breather" that allows a scuba diver to stay underwater for hours without carrying massive air tanks.

A more difficult situation would be if the air were somehow lost to space. That would be harder. But if the air leak could be patched, they could boil the water on-board to replace much of the air. While there would be an imbalance of lack of nitrogen, and an excess of hydrogen, the only ill effects would be that they will talk funny until they can return home.

It is also possible that they could use some of the oxygen that is used for the engines, but having too much oxygen content can cause other problems. The air we normally breathe is only about 20% oxygen.

During takeoff, an astronaut may feel intense acceleration forces pushing them back into their seat, similar to experiencing the force of gravity multiplied several times. They may feel pressure and vibration as the rocket engines ignite and propel the spacecraft into space, causing their body to physically react to the G-forces. The experience can be exhilarating and overwhelming as the spacecraft accelerates rapidly towards orbit.

No, Mark Shuttleworth has not been to the moon. He is a South African entrepreneur who is known for being the second self-funded space tourist, traveling to the International Space Station in 2002 aboard a Russian spacecraft.

Astronauts wear specially made suits, called spacesuits, to protect them from the harsh conditions of space, such as extreme temperatures, vacuum, and radiation. The suits also provide oxygen, regulate temperature, and supply water. They are designed to keep astronauts safe and comfortable while they work outside the spacecraft.

Astronauts' salaries can vary depending on their experience and role, but typically range from $66,000 to $144,566 per year. Additionally, they may receive bonuses or hazard pay for space missions.

Astronauts on the space station breathe a mixture of oxygen and nitrogen, similar to the air we breathe on Earth. The station has systems that generate and maintain this breathable atmosphere, including equipment to produce oxygen from water and remove carbon dioxide exhaled by the astronauts.

Astronauts receive vacation time like other federal employees, which can vary depending on the agency they work for. They may accrue vacation days based on their time of service or have scheduled breaks in between missions. Additionally, astronauts have downtime during and after spaceflights to recuperate and spend time with family.

All six Apollo missions that landed on the moon landed on the 'sunny' side, and all twelve astronauts

who got out and walked on the moon walked in the sun. They would have been fried and irradiated

without protection, which is a big part of the reason why they wore space suits. Another reason for the

space suits was the fact that since their assigned tasks on the moon required so much physical effort,

they got together and decided that while they were walking and working on the moon, they wanted to

keep breathing. They needed a way to do that, since the moon has no air, and since they would be in

space suits anyway to avoid being fried and irradiated, it was a no-brainer to put the air in there too.

The typical garb is a 1-piece Nomex coverall "flight suit". Of course, if they are about to perform Extra-Vehicular Activity in space they will need to don an EVA suit.

Astronauts should use pencils with hard heads in space to prevent the accumulation of graphite dust, which can be risky in a microgravity environment. Hard-headed pencils create less residue when writing, reducing the chances of it floating around and causing problems with equipment.

There were no astronaut fatalities in the Gemini program.

Two of the three astronauts who died in the Apollo-1 accident had been in the Gemini program.
These were Gus Grissom, and Ed White; Roger Chaffee was also killed in the Apollo-1 accident.

The Challenger explosion occurred at an altitude of about 46,000 feet.

If you were in the vacuum of space without a spacesuit, the lack of pressure would cause the air in your lungs to expand rapidly, which could result in lung damage. Additionally, the lack of oxygen would lead to hypoxia, causing you to lose consciousness within seconds and eventually death.

Any object that has mass has weight even in space. If an astronaut weighs 195 pounds while standing on the planet then he/she will also weigh 195 pounds while in space. Earths gravity, which determined the weight, will exert the same force on this astronaut because the mass is the same. While in space, it may appear the astronaut is "floating", he/she is actually in free fall. What this means is, as they travel around the planet they are in reality "falling" to Earth but, for every inch they fall, the planet move an inch out of their way.

An astronaut's suit, also known as Extravehicular Mobility Unit (EMU), is typically white, bulky, and features a helmet with a gold visor. It provides protection from the harsh conditions of space including extreme temperatures, radiation, and micrometeoroids. The suit is equipped with life support systems, communication gear, and tools necessary for spacewalks.

Alan Shepard attended the United States Naval Academy in Annapolis, Maryland for his college education.

The space shuttle is powered by three fuel cell power plants. The fuel cells are located under the payload bay area in the forward portion of the space shuttle's midfusalage. The three power cells operate independantly of each other, with each supplying it's own isolated 28-volt DC bus. The fuel cells are made up of a power section and an accessory section. In the power section, hydrogen and oxygen are transformed into electrical power, heat, and water. The accessory section controls and monitors the power section's performance. The water produced from the fuel cells is either used for crew consumption, used for cooling the shuttle's Freon-21 coolant loops, or is dumped overboard as waste water.

The first female professor was Elena Lucrezia Cornaro Piscopia, an Italian philosopher and theologian who was awarded a doctorate in theology from the University of Padua in 1678, becoming the first woman to receive a university degree.

Astronauts currently work in six month shifts on the international space station.

A single astronaut might fly only once in his career. Others, however, have flown

as many as five or six times! (Astronaut training is expensive.)

Astronauts undergo extensive training in various areas such as spacewalks, scientific experiments, and spacecraft systems. While in space, they conduct research, perform maintenance tasks on the spacecraft, and communicate with mission control on Earth. They also exercise daily to combat the physical effects of prolonged weightlessness.

Spacecraft float in space due to the lack of gravity pulling them down. They are in a state of continuous free fall around the Earth, causing them to orbit rather than fall back to the ground. This creates the sensation of floating for astronauts inside the spacecraft.

The first female physician in the world was believed to be Peseshet, an ancient Egyptian woman who lived around 2700 BC. She was known as the "Lady Overseer of the Female Physicians" and practiced medicine in Ancient Egypt.

The world's first astronaut was Yuri Gagarin, a Russian cosmonaut who made history by becoming the first human to journey into outer space on April 12, 1961 aboard the Vostok 1 spacecraft.

sputnik was the first space ship

launched by india.