All of our solar system ... the planets appear in the sky, they all appear roughly along the ecliptic. It isn't a perfect line of planets, because their orbits are tilted slightly, but it is fairly ...

Six planets ... Getty Images) While fascinating to observe, do such alignments have any impact here on Earth? Or might they have a use for increasing our understanding of our Solar System ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...