Don’t let the space nerd (me) read I Am Number Four.
Lorien is supposed to be 10x smaller than the Earth and older and still support life?
Yeah right. I don’t think so.
If it was that much smaller than Earth, and older, it probably wouldn’t be able to sustain life. Its liquid core wouldn’t be moving anymore since it’s so small---it would have cooled off a long time ago, like Mercury, Mars, or the Moon, and been geologically dead. The only reason Jupiter’s moons are still geologically active is Jupiter’s massive gravity and orbital resonances. No moving liquid iron core? No magnetosphere. No magnetosphere? No protection from solar winds.
And a sun twice the size of ours? While still small compared to some stars, that’s a lot of solar wind on a planet 10x smaller than Earth.
Can I suspend my disbelief for aliens with superpowers? Yeah sure.
Can I suspend my disbelief for a planet 10x smaller than Earth and older than Earth that still supports life? Apparently not. *snorts*