In the distant past, did Earth share the same orbital path with a Mars sized Planet? New data from the Kepler telescope seems to point in that direction.
Kepler has uncovered a planetary system with two planets that orbit their primary at exactly the same distance. This discovery would support support the theory that Earth once shared its orbit with a Mars-sized body, that later collided with it, creating the moon.
What makes this seem plausible is the dynamics of the system uncovered by Kepler. Each planet's orbit contains two orbital "safe zones" that are gravitationally balanced. At 60 degrees ahead and 60 degrees behind a planet in orbit are Lagrange points (I know, yes there ARE two more, one between the planet and the sun and one that exists an equal distance further distance from the sun) Kepler's discovery has the planets in each other's Lagrangian points 60 degrees forward or behind, depending on your frame of reference.
Read the complete Daily Galaxy article here
Kepler has uncovered a planetary system with two planets that orbit their primary at exactly the same distance. This discovery would support support the theory that Earth once shared its orbit with a Mars-sized body, that later collided with it, creating the moon.
What makes this seem plausible is the dynamics of the system uncovered by Kepler. Each planet's orbit contains two orbital "safe zones" that are gravitationally balanced. At 60 degrees ahead and 60 degrees behind a planet in orbit are Lagrange points (I know, yes there ARE two more, one between the planet and the sun and one that exists an equal distance further distance from the sun) Kepler's discovery has the planets in each other's Lagrangian points 60 degrees forward or behind, depending on your frame of reference.
Read the complete Daily Galaxy article here
