 Now that we have a field for the size of the heliosphere, the Kuiper Belt, and the Oort Cloud, let's review how far the main objects in our solar system are. The Sun is 150 million kilometers away, and a million Earths could fit inside it. Mars' orbit is half again as far away as that at 78 million kilometers from Mars. Jupiter, the largest planet in the solar system, is 5.2 times further away from the Sun than the Earth is. That puts its orbit at 772 million kilometers away from Mars. The asteroid belt fits between the orbits of Mars and Jupiter. Pluto's orbit in the Kuiper Belt is 5.6 billion kilometers away. We have seen that the Kuiper Belt goes from 4.5 billion kilometers out to 7.5 billion kilometers. And the termination shock is 18 billion kilometers away. And our estimate for the bow shock is that it's 19 billion kilometers away. We have just seen that the Oort Cloud starts much further away than that at 748 billion kilometers, and extends out to 8.2 trillion kilometers or more. We have used direct measurement by going there, triangulation, and planetary parallax to calculate these solar system distances. In our next segment on Nearby Stars, we'll advance our cosmic distance ladder to cover how we know how far away it is to Proxima Centauri, our nearest stellar neighbor.