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Is it true that Earth's gravitational pull on a spacecraft is greater as the spacecraft moves away from Earth?
False. The attractive force of gravity decreases with the square of the distance.
What was the first American spacecraft carrying an astronaut to orbit Earth?
The first American spacecraft which orbited the earth was called The Mercury Friendship 7, and the astronaut was a famous person his name was John Glenn, he was a senator for many years later.
What do astronauts fly in?
Astronauts in their spacecraft (such as the Space Shuttle) are lifted into space by huge rockets which accelerate the craft to "escape velocity" (about 25,000 mph). This puts the craft into orbit around the Earth, its forward velocity balancing the continuous pull of gravity. When they are ready to return to Earth, they use rockets to slow down, and gravity pulls them back out of orbit. When astronauts travelled to the Moon, another smaller rocket pushed the Apollo spacecraft out of orbit, and carried it to the gravitational field of the Moon. Another rocket firing pushed the craft back to Earth. Unmanned space probes have travelled to even farther distances from Earth, including the outer planets Uranus and Neptune. Most of the travel is coasting, because there is practically no matter in space to slow a spacecraft down.
The similarities between an aircraft and a spacecraft?
the both fly and have a streamlined shape.
Why does a spacecraft does not burns when it move from earth to space but it burns while returning from there?
When a spacecraft goes into space its speed increases dramatically once it leave the earths atmosphere. When it is returning to earth, it hits the atmosphere at a faster rate than it was traveling when it left. The friction of the atmosphere against the craft, heats it up.
What spacecraft traveled back and forth between earth and space?
Space shuttles
How many days does it takes to get to the moon from the earth?
At the speed the Apollo spacecraft traveled, it took three to three and a half days.
How fast did Apollo spacecraft travel when going to the moon?
The Apollo spacecraft traveled approximately 25,000 miles per hour (40,000 km/h) on its journey to the moon. The spacecraft had to reach this high velocity to escape Earth's gravitational pull and reach the moon.
How fast did the Apollo spacecraft go?
The Apollo spacecraft traveled at speeds of about 25,000 miles per hour (40,000 km/h) to reach the Moon and during its return journey to Earth.
Where did john glenn traveled?
John Glenn traveled around the earth in a spacecraft. On February 20, 1962, Glenn flew the Friendship 7 mission becoming the third American in space and the first American to orbit the Earth circling it three times.
How fast was the spacecraft that took man to the moon?
The Apollo spacecraft that took humans to the moon traveled at an average speed of about 3,600 kilometers per hour (2,200 miles per hour) during the journey from Earth to the moon.
What are parasol used for in space?
Gigantic sails can be used as sun-jammers to propel spacecraft. Unlike a parasol on earth, which is used to block the sun's rays, these contraptions are designed to capture solar radiation and use the radiation energy to accelerate spacecraft.
What must a spacecraft do to leave earth?
A spacecraft must achieve escape velocity (around 25,000 mph) to break free from Earth's gravitational pull. This involves overcoming gravity, air resistance, and atmospheric drag to enter into orbit and then further accelerate to break free from Earth's gravity well. Once it reaches escape velocity, the spacecraft can travel to other celestial bodies or into deep space.
How did they get to the moon?
The Apollo missions, carried out by NASA, used powerful rockets to launch spacecraft to the moon. The spacecraft traveled through space for several days before landing on the moon's surface and returned to Earth after completing their mission.
What is the farthest mankind has travelled into the universe?
Human beings have traveled about 240,000 miles from the earth. That's the distance to the moon and around it in orbit.
If a spacecraft travels from earth to the edge of the solar system what will happen to the gravitational pull between earth and the spacecraft?
The gravitational pull between earth and the spacecraft will become insignificant.
What do you call a spacecraft that is controlled from earth?
A spacecraft that is controlled from Earth is typically referred to as a teleoperated spacecraft. This means that it is being controlled by operators on Earth rather than operating autonomously.
