The distance to star A is about 8x10^3 light years. The distance to Star B is about 6x10^5 light years. Find which star is farther away. Then find by how much in scientific notation.
To compare the distances, we can simply compare the exponents in the scientific notation. The exponent of the distance to star A is 3, while the exponent of the distance to star B is 5.
Since 5 is greater than 3, it means that the distance to star B is farther away than the distance to star A.
To find the difference in scientific notation, we can subtract the exponents: 5 - 3 = 2.
Therefore, star B is farther away from us than star A by a factor of 10^2, which can be expressed in scientific notation as 1x10^2.