samcornwell replied to your photo: Voyager 1: beyond the edge of the solar system at…
Instead of time, wouldn’t distance be more appropriate on the x axis?
In some respects, yes, but at this point I think it’s important to determine exactly when the transition to interstellar space might have occurred, and then we can extrapolate exactly where that boundary is after the fact. The distance from Earth won’t be known until we know exactly when that data was collected since both bodies’ movements are relative.
That being said, the boundary is not a firm line, but more like a cloud or a foam. More measurements should verify this very soon, but Voyager is on minimal power usage now, so collecting that and beaming it back takes some time.