The
speed of light
= 186,000 mps=
Earth's rotational speed around the Sun = 67,000
MPH
Lightning is
about 3 times hotter than our Sun.
The unaided
eye can see about 6,000 stars over the entire sky.
The
Andromeda Galaxy is the closest galaxy to the Milky Way
and it is moving towards us at 268,432 MPH
