Astronauts

so they can breathe

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Because they are. Pecan nuts have more protein and it keeps them healthier.

Astronauts need to sleep at regular intervals in space because in space, say and night do not exist. On earth the earth rotates on it's axis causing day and night. Periods of light and dark. If you have ever had jet lag, you realize that even a small change in time zones can throw your sleep cycles off a great deal. Traveling great distances on the earth causes greater sleep disturbances. It can be noon where you are, but your body clock can say it is midnight, and of course vice verse. So astronauts have to plan to sleep at regular intervals, in order to stay rested, alert, and able to perform the needed procedures when they need to. Regular work outs are very important on prolonged visits to space, due to several factors. The first is the absence of gravity. In space there is very little if any gravity. Our bodies are used to gravity trying to hold us down on the earth. Gravity is what makes our muscles, and skeletal system strong. As we are always fighting against gravity. In reality we are always lifting weights on earth, because gravity is always pulling us down. In space there is little or no gravity. And in a very short time our muscles and bones can atrophy. Because of this work outs are very important. The other major factor is pressure. On earth there is a great deal of pressure pushing on every square inch of our bodies. The weight or pressure of all of the atmosphere above us, is constantly trying to crush us. Think about scuba diving. Every foot you dive below the surface adds the weight, or the pressure, of the water above to your body. This is why divers must decompress before returning to the surface. The tremendous pressure of the water above compresses the gases in your body. As the diver returns to the surface the pressure decreases and the gases expand. In space you have the exact opposite problem. In space there is little if any pressure. No gravity and no pressure is bad because our bodies are designed to work at their best with the pressure and gravity on earth. In space our hearts are less productive. So are our lungs, muscles, bones and circulatory systems. Astronauts must work out in order to combat the problems of no pressure or gravity. Most astronauts return to earth with less muscle mass, and bone density then before they left. Some astronauts on the space station, who have been in space for very long periods of time can barely stand up when they return to earth, because of the lack of pressure and gravity. Their bodies become weaker because there is no force pushing against them or holding them down.

Explosion.

it arrives directly from the sun or reflects off the earth moon or any other object that will reflect it

Since 1957 when the Russian launched the first satellite.

Mercury,Venus,Earth,Mars,Saturn Pluto(not considered a planet),Jupiter,Uranus and Neptune.

Sound needs to travel in medium like air, but there is no air in outer space, so sound is unable to travel.

So basically sound needs air to travel, if there is no air sound cannot travel, when sound is unable to travel you cannot communicate (talk, speak, etc)

A lot of dried potatoes

Although the Earth's gravity has a lesser effect on an astronaut orbiting the Earth in a spaceship than on a person on the surface of the Earth, this is not the reason why an astronaut experiences weightlessness. The space shuttle, International Space Station and most other manned vehicles don't get that far from the Earth. The Earth's gravitational attraction at those altitudes is only about 11% less than it is at the Earth's surface. If you had a ladder that could reach as high as the shuttle's orbit, your weight would be 11% less at the top. Put another way, a person who weighs 100 pounds on the Earth's surface would weigh about 89 pounds at the top of the ladder.

orange otherwise white space suit.

No, Neil Armstrong was not an actor. He was an astronaut and the first person to walk on the moon during the Apollo 11 mission in 1969.

The Apollo 13 mission utilized radio communications to transmit signals between the spacecraft and Mission Control on Earth. They used high-frequency radios and antennas on the spacecraft to communicate with tracking stations on Earth, which in turn relayed the signals to Mission Control. This allowed for real-time voice communication and data exchange during the mission.

The Apollo 11 crew that travelled to the moon in 1969 included NASA astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin.

Some possible promotions for an astronaut could include advancing to a higher rank within a space agency, being selected for more challenging and prestigious missions, or becoming a lead astronaut for a particular space exploration program. Additionally, astronauts may also have opportunities for career advancement in the form of administrative or managerial roles within space agencies or commercial space companies.

Valentina Tereshkova (born 1937) was the first woman in space, and flew the Vostok 6 spacecraft for three days in June, 1963. Vostok 6 flew at the same time as Vostok 5, piloted by male cosmonaut Valery Bykovsky, who launched before Tereshkova but landed afterward.

The second person to go to space was Gherman Titov from the Soviet Union. The third person was John Glenn from the United States, the fourth was Andrian Nikolayev from the Soviet Union, and the fifth was Pavel Popovich, also from the Soviet Union.

It does not, you must remain on a safety line attached to the space vehicle, that line also carries your oxygen supply

If memory serves, there were two: LtGeneral Thomas P. Stafford, commander of Gemini 9 and Apollo 10; and BrigGeneral Charles M. Duke, LM pilot of Apollo 16.

Sponge baths. Wet wipes. You can't let liquid free in zero-G; it would make a REAL mess! You could drown by inhaling the water.

Plus, the Shuttle doesn't carry enough water for real baths.

Just an addendum: Skylab actually had a rudimentary shower aboard. It consisted of a canvas sleeve that could be extended from floor to ceiling to contain the mist of water and a vacuum system for water reclaimation. It is my understanding that it wasn't used much.

Neil Alden Armstrong (born August 5, 1930) is a former Americanastronaut, test pilot, university professor, and United States Naval Aviator. He was the first person to set foot on the Moon. His firstspaceflight was aboard Gemini 8 in 1966, for which he was the command pilot. On this mission, he performed the first manned docking of two spacecraft together with pilot David Scott. Armstrong's second and last spaceflight was as mission commander of the Apollo 11 moon landing mission on July 20, 1969. On this mission, Armstrong and Buzz Aldrin descended to the lunar surface and spent 2.5 hours exploring while Michael Collins orbited. Armstrong is a recipient of the Congressional Space Medal of Honor.

The first African Canadian astronaut was Dr. Roberta Bondar. She flew on the Space Shuttle Discovery in 1992, becoming the first neurologist in space and the first Canadian woman to travel to space.

Our Indian astronauts are

1. RAKESH SHARMA

2. KALPANA CHAWLA

3. SUNITHA WILLIAMS