The Orion Arm is a minor spiral arm of the Milky Way some 3,500 light-years (1,100 parsecs) across and approximately 10,000 light-years (3,100 parsecs) in length. The Solar System, including the Earth, lies within the Orion Arm. It is also … Continue reading
Wandering Jupiter accounts for our unusual solar systemScientists say Jupiter swept clear the inner solar system, resulting in the formation of a planetary system unlike any other astronomers have yet found Source: Wandering Jupiter accounts for our unusual solar system … Continue reading