Thousands of people looked to the skies on Saturday in the hopes of seeing the historic SpaceX mission enter space.
The collaboration between Elon Musk's company and NASA saw the Dragon rocket head over Ireland at around 8:45pm on Saturday night.
The brightness and some cloud cover meant many people didn't see the craft carrying two astronauts at all.
But some people were lucky enough to see the bright dot speed across the sky in the south-west direction.
However, even more people thought they saw it but were instead staring at passenger or cargo planes that happened to be flying overhead at the same time.
Dozens took to social media to post pictures and videos of what they reckoned was the rocket - but sadly they were mistaken.
The Dragon rocket did not leave a chem trail and was instead simply a very small bright dot that sped across the sky.
Videos on social media showed a very visible plane with a contrail going straight across the sky, to the excitement of many.
Astronomers and space geeks were quick to point out that they were mistaken however.
Those who missed the rocket at take off time did get another chance after 10pm when you could see it circling the earth and heading for the International Space Station.
The SpaceX rocket docked with the International Space Station on Sunday afternoon.
US astronauts Doug Hurley and Bob Behnken were launched into space with a Falcon-9 rocket from Florida's Kennedy Space Center on Saturday.
The crew moved towards the orbiting platform in the Dragon capsule which attached to the ISS at roughly 3.15pm Irish time.
The docking was aired live on NASA TV.
Shortly after the docking was completed, Mr Hurley congratulated the teams at Nasa and SpaceX. He said: "It's been a real honour to be just a small part of this nine-year endeavour since the last time a United States spaceship has docked with the International Space Station."
