The simulations also showed that rocky planets known as Hot Earths often form inside the orbits of Hot Jupiters.

BBC: NEWS | Science/Nature | Earth-like planets may be common

The team concluded that about one of every three known planetary systems could harbour Earth-like planets in habitable zones further out than the Hot Jupiters.

BBC: NEWS | Science/Nature | Earth-like planets may be common

This studio session was the Jupiters' first live radio show.

NPR: The Jupiter String Quartet: Orbiting Perfection

And certainly for awhile, and even now still, it does make sense to a degree that the hot Jupiters are simply easier to find and they're quicker to find.

NPR: What Makes Our Solar System Special?

Dr. THOMMES: Well, there's been this sort of almost disconnect in a way between these exoplanets that we have been discovering in our own system because we have been really finding all of these hot Jupiters and eccentric planets.

NPR: What Makes Our Solar System Special?

But at the same time, what we started to understand about the formation process, we thought there would indeed be a lot of these orbits of giant planets spiraling inward after they're born and things that give you, for instance, hot Jupiters.

NPR: What Makes Our Solar System Special?

They gravitationally interact, and we get these sort of eccentric, elongated orbits and also these sort of closed-in, or what are often called hot Jupiters, which, interestingly, are exacting the sort of thing we see in many cases amongst the exoplanets that have been discovered.

NPR: What Makes Our Solar System Special?