After reaching space, the Dragon spacecraft circled the Earth 18 times, firing engines to put itself on a trajectory toward the ISS.
When the Dragon capsule approached the ISS, it moved closer and then backed away, practicing a retreat designed for emergencies.
Then, at 11am GMT (6am ET) on Sunday, the Dragon spacecraft docked with the ISS.
For the first time in nearly eight years, an American-built spacecraft designed to carry humans joined with mankind’s home in space.
Cameras on the ISS captured the slow and steady approach.
READ MORE: NASA in alien life BREAKTHROUGH after DNA discovery