THE HAMMER & THE FEATHER DROPPING AT THE SAME SPEED IN OUTER SPACE
The reason they fall at the same rate is because there is no air resistance in outer space.
When a feather falls on Earth, there are a million air particles “bumping” into it and slowing it’s descent. Similarly, air particles “bump” into a hammer, but it doesn’t slow down because it has such a big mass.
In outer space there is no air, so the two objects fall at the same rate.