"I dunno." Plasma isn't perfect but it's similar enough and it's what he knows.

Anakin sits quiet, reaching out and trying to sense the Force, make sense of what he is sensing, and put it to words. "I sense something. Hot, like burning zinc." A comet, but he doesn't know what they are passing. "Stars. One is dying." He stops talking and reaches out. "People. There's people? Or was." They had just passed another ship in the hyperspace lane, although Anakin didn't - couldn't - have known that.