What Is The History Of Discovery The Spaceship?

Answer 1

Astronauts on a space shuttle mission can see planet Earth below. They see

different parts of Earth as the shuttle goes around the planet. The shuttle is in

orbit above Earth. An orbit is a curved path going around something in space.

WHAT KINDS OF THINGS ORBIT IN SPACE?

The Moon orbits Earth. Space shuttles and artificial satellites also orbit Earth.

Spacecraft sent to explore distant planets sometimes go into orbit. A spacecraft

orbits a planet and takes pictures and measurements.

Everything in our solar system orbits around the Sun. All the planets orbit the Sun.

Pieces of rock called asteroids orbit the Sun. Balls of ice and rock called comets

orbit the Sun. Moons orbit planets, which orbit the Sun.

Our Sun is a star in the Milky Way Galaxy. A galaxy is a group of stars. All the stars

in the Milky Way orbit the center of the Galaxy.

HOW ARE ORBITS SHAPED?

Technically, an orbit could be shaped like a circle, but none ever is. Closed orbits

are always oval-shaped like a racetrack. Planets, asteroids, and comets in our

solar system have oval-shaped orbits. Another name for the oval shapes of orbits

is ellipse.

Some orbits are bigger ovals than others. The bigger the oval, the longer it takes

something to orbit the Sun. It takes Earth one year, or 365 days, to go around the

Sun. It takes Pluto 248 years to orbit the Sun. Pluto has an orbit that takes it very

far from the Sun.

Most comets orbit the Sun in huge oval paths. Sometimes the orbital paths of

these comets take them close to the Sun in the center of our solar system.

Sometimes their paths take them out to the edge of our solar system.

HOW DO SATELLITES ORBIT EARTH?

Weather satellites, communications satellites, and other types of satellites take

different paths around Earth. Some satellites orbit directly above Earth's equator.

The equator is an imaginary line around the middle of the planet. The orbits of

other satellites take them over the North and South poles.

Some communications satellites orbit at the same speed that Earth turns. They

look like they are not moving. A satellite has to move at just the right speed to

stay in its orbit above Earth.

WHAT KEEPS THINGS IN ORBIT?

The force of gravity holds satellites, moons, planets, and stars in orbit. Gravity is a

force that pulls two things together. When you throw a ball up in the air, Earth's

gravity pulls it back down to the ground. The bigger something is, the stronger is

its force of gravity.

The Sun is very large and its gravity pulls on planets and everything else in the

solar system. The Sun's gravity makes the planets travel in a curved path around

the Sun. Earth's gravity holds the Moon and artificial satellites in curved paths

around Earth.

When a spacecraft goes fast enough, it can overcome the pull of Earth's gravity.

Rockets can make spacecraft move fast enough to head toward distant planets.

Sometimes satellites in low orbits around Earth slow down. This happens when the

satellites brush against faint wisps of air. Earth's gravity pulls slow-moving

satellites down. The satellites fall toward Earth. Sometimes the satellites burn up

in the air. Sometimes the satellites crash into the ocean

ANSWERED BY- BISHAV ADHIKARI

FROM-NEPAL

Answer 2

the answer that you are looking for is simple. the Chinese first invented the gun-powdered arrow and through many trial and errors came the rocket that can fly into space.

also the newest space ship that NASA is inventing is called the Orion. it is similar to the Apollo. the reason that they are changing the ways of the space shuttle is because of safety issues.

Answer 3

As often happens in science, the earliest practical work on rocket engines designed for space flight occurred simultaneously during the early 20th century in three countries by three key scientists: in Russia, by Konstantin Tsiolkovski; in the United States, by Robert Goddard; and in Germany, by Hermann Oberth. In the 1930s and 1940s Nazi Germany saw the possibilities of using long-distance rockets as weapons. Late in World War II, London was attacked by 200-mile-range "V-2" missiles, which arched 60 miles high over the English Channel from Germany at more than 3,500 miles per hour.

After World War II, the United States and the Soviet Union created their own missile programs. On October 4, 1957, the Soviets launched the first artificial satellite, Sputnik 1, into space. Four years later on April 12, 1961, Russian Lt. Yuri Gagarin became the first human to orbit Earth in Vostok 1. His flight lasted 108 minutes, and Gagarin reached an altitude of 327 kilometers (about 202 miles).

The first U.S. satellite, Explorer 1, went into orbit on January 31, 1958. In 1961 Alan Shepard became the first American to fly into space. On February 20, 1962, John Glenn's historic flight made him the first American to orbit Earth.

"Landing a man on the moon and returning him safely to Earth within a decade" was a national goal set by President John F. Kennedy in 1961. On July 20, 1969, Astronaut Neil Armstrong took "a giant step for mankind" as he stepped onto the moon. Six Apollo missions were made to explore the moon between 1969 and 1972.

During the 1960s unmanned spacecraft photographed and probed the moon before astronauts ever landed. By the early 1970s orbiting communications and navigation satellites were in everyday use, and the Mariner spacecraft was orbiting and mapping the surface of Mars. By the end of the decade, the Voyager spacecraft had sent back detailed images of Jupiter and Saturn, their rings, and their moons.

Skylab, America's first space station, was a human-spaceflight highlight of the 1970s, as was the Apollo Soyuz Test Project, the world's first internationally crewed (American and Russian) space mission.

In the 1980s satellite communications expanded to carry television programs, and people were able to pick up the satellite signals on their home dish antennas. Satellites discovered an ozone hole over Antarctica, pinpointed forest fires, and gave us photographs of the nuclear power-plant disaster at Chernobyl in 1986. Astronomical satellites found new stars and gave us a new view of the center of our galaxy.

In April 1981 the launch of the space shuttle Columbia ushered in a period of reliance on the reusable shuttle for most civilian and military space missions. Twenty-four successful shuttle launches fulfilled many scientific and military requirements until January 1986, when the shuttle Challenger exploded after launch, killing its crew of seven.

The Challenger tragedy led to a reevaluation of America's space program. The new goal was to make certain a suitable launch system was available when satellites were scheduled to fly. Today this is accomplished by having more than one launch method and launch facility available and by designing satellite systems to be compatible with more than one launch system.

The Gulf War proved the value of satellites in modern conflicts. During this war allied forces were able to use their control of the "high ground" of space to achieve a decisive advantage. Satellites

were used to provide information on enemy troop formations and movements, early warning of enemy missile attacks, and precise navigation in the featureless desert terrain. The advantages of satellites allowed the coalition forces to quickly bring the war to a conclusion, saving many lives.

Space systems will continue to become more and more integral to homeland defense, weather surveillance, communication, navigation, imaging, and remote sensing for chemicals, fires and other disasters.

The International Space Station is now in orbit and permanently crewed. With many different partners contributing to its design and construction, this high-flying laboratory has become a symbol of cooperation in space exploration, with former competitors now working together.

And while the space shuttle will likely continue to carry out important space missions, particularly supporting the International Space Station, the Columbia disaster in 2003 signaled the need to step up the development of its replacement. Future space launch systems will be designed to reduce costs and improve dependability, safety, and reliability. In the meantime most U.S. military and scientific satellites will be launched into orbit by a family of expendable launch vehicles designed for a variety of missions. Other nations have their own launch systems, and there is strong competition in the commercial launch market to develop the next generation of launch systems.

Answer 4

they can fly into space and they are very big and they can rip apart in half.

Answer 5

it begins with a single metal

Answer 6

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