It makes the data thet they collect more reliable so if they need the data again, they have already tested it a few times so therefor they know that it is right.
Explanation:
it is energy that flows of electric charge it has the ability to do work or apply force to move an object.
The color of light that a star emits is somewhat related to its age, whereas the color of light that we actually <em>observe</em> from a star is related to the speed at which it's moving with respect to us.
The new volume = 3 x 52.6 that’s because as the pressure decreases by 1/3 the volume increases x3