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Light Years or AU (Astronomical units). It depends on what you are mesuring. For example the distance to the nearest star besides the sun is aproximitly 4.2 light years away vs. the earth is 1 AU away from the sun. (the au is the distance between the earth and the sun)
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Why is it necessary for scientists to use AU to measure distance in space?
It's more convenient for scientists. AU is the distance the earth is from the sun.
What measurement do scientists use for the distance between stars and Earth?
scientists use light-years to measure long distances in space. a light year, (abrviated ly) is the distance light can travel.
Why do scientists use full scale mockups of space vehicles and the International Space Station before a real mission?
To make sure it can go the distance and back
Why do scientists use the speed of light to calculate distance?
Scientists use light years to calculate distance because they can tell how far away things are in space by measuring how much time it takes for light to reach a certain point. It's just easier to say how many light years things are in space then to say in miles.
Why do scientists use spacecraft without people to explore space?
scientists use spacecraft without people to explore space because scientists need to know more about space and the solar system
WHAt are instruments use in outer space?
telescope
How have scientists use technology to observe the outer planets?
They used a telescope
What wavelength does the Chandra telescope use to examine outer space?
The Chandra Telescope uses x-rays to examine outer space.
What do you use for outer space navgation?
You would use the positions of distant stars.
How is underwater training similar to the experience that astronsouts will have in space?
water is similar to outer space because it has little gravity so astronomers use it to practice in it to get ready for outer space.
What kind thread that use on V2Q Outer space Blue Color code in Embroidery?
the tread that is use on a V2Q outer space blue colour code in embroidery is a sewing thread
What tools do scientists use from space to study space Why can they only be used from space?
telescopes because they are meant to look into space
