Finding a gas-giant, orbiting a G-class star at around 5.0-6.0 A.U. [comparible to Jupiter] is exciting enough,
now comes news that the two have detected the least massive exoplanet
so far at around 40 Earth masses.
[Compare that to Neptune at 17 Earth masses, and Saturn at 95 Earth masses.]

40 Earth masses would still make it a "gas giant" but it may have some interesting moons.

Better news still: Their improved, more sensitive "wobble" method of exo-planet detection [I'm assuming that's still doppler shifting] has a lower-limit down to 10 Earth-masses
where you may start thinking of the existence of massive terrestrial planets.

Hmmmm! A potential 10 Earth-mass planet out there somewhere? Maybe a rocky-metal planet 15,000-17,000 miles in diameter? It's heat-softened crust covered entirely by a boiling ocean?

Jacob