A new theory suggests an errant young star strayed close and pulled our developing planets out of whack with the Sun's equator.
Accounting for planets that circle their stars on tilted paths, this idea may also explains why Earth's orbit is tipped 7 degree relative to the Sun's equator, 'ScienceNOW' reported.
Konstantin Batygin of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Massachusetts, suggests that Sun had a near stellar neighbour at the time Earth was formed.
In 1995, Swiss astronomers made the shocking discovery of the first "hot Jupiter," a gas giant circling close to its star.
"Misaligned orbits are actually a natural outcome of disk migration
