- Earth is moving at about 67,000 miles per hour relative to the Sun.
- The Sun ,with the Earth in tow,is traveling around the Milky Way at 486,000 miles per hours,at a distance of 156000 trillion miles from the center.At this speed,it takes 226 millions years to complete one orbit.
- Speed of light is constant; 299,792,458 meters per second in the vacuum of empty space.
- A flash of light beamed out form the Earth takes around 8.26 seconds to pass the Sun, 100,000 our own Milky Way galaxy, and over 2 million years to reach nearest galactic neighbour, Andromeda.
- If we can travel at the speed of light, Time clock will stop.
