How do we know how old the Sun is?
A)from Newton's version of Kepler's third law and the orbits of the planets
B)from ages of solar system meteorites, based on radioactive elements
C)from calculating its fuel supply and how fast it is using it up
D)from its speed and distance from us

Question

Quizplus · Accepted Answer

The age of the Sun is determined by analyzing the ages of meteorites in the solar system, which contain radioactive elements that decay over time. By measuring the ratios of these isotopes in the meteorites, scientists can estimate the amount of time that has passed since the formation of the solar system, and thus the age of the Sun.

How Do We Know How Old the Sun Is