The Solar System is not a flat diagram of planets moving in simple circles. The Sun, planets, moons, and asteroids are all traveling through the Milky Way together, creating a dynamic 3D journey ...

To receive the same amount of starlight as Mars receives from our sun, a planet orbiting an M-type red dwarf would have to be positioned much closer to its star than Mercury is to the sun. Disclaimer: ...

Find out what’s involved for students: Students construct -- and where appropriate, calculate -- a scale model of the solar system using beads and string. Students will observe the relative distances ...