Han proceeded to tell his son that Luke had fought his father Darth Vader in Cloud City above the planet of Bespin. Luke's hand was cut off during the battle.
In "Star Wars: The Last Jedi," Luke Skywalker's hand was not injured or lost. Instead, he was seen wearing a robotic prosthetic hand, which he had received after losing his original hand in a lightsaber duel with Darth Vader in "The Empire Strikes Back."
Snoke may be a clone made from Luke's hand, as hinted in Star Wars comics, adding depth to the sequel trilogy villain's backstory. Luke taps into dark side power after losing his hand, raising questions about Snoke being linked to his pain and dark side influence.
But Snoke's visions and Force senses had betrayed him. The former Ben Solo ignited Luke Skywalker's lightsaber, cleaving his master in two and ending Snoke's life.
Post-Script Follow-up: Turns out he never actually got his hand back but, instead, had to make do with a prosthetic. Lucky for him, he had some kind of medical insurance through the Rebel Alliance, so it was a state of the art bionic one that looked just like the original.
What REALLY Happened To Luke Skywalker's Hand After The Empire Strikes Back (Canon)
What happened to Luke's original lightsaber?
Luke carried his father's lightsaber when he confronted Vader on Cloud City, losing it when the Sith Lord chopped off his hand. The Skywalker lightsaber came into the possession of Maz Kanata, and called to the scavenger Rey.
After Count Dooku severed the right arm of Anakin Skywalker in the opening battle of the Clone War, a mechno-arm was grafted to what was left. Luke Skywalker had much of one grafted to his wrist after Darth Vader severed his hand at Cloud City.
The wampa attack stemmed from a real-life car accident star Mark Hamill suffered in January 1977. In J.W. Rinzler's book The Making of Star Wars: The Empire Strikes Back, Rinzler describes Lucas' suggestion that they explain Hamill's injuries as "'Luke crash in beginning (scar on face).
Why did Luke have a perfectly replicated hand in Return of the Jedi, and an obviously mechanical hand by the time of The Force Awakens/The Last Jedi? It's likely the same mechanical hand. It was tested at the end of ESB, and got shot during ROTJ, if you recall. Then he wore a glove over it for the rest of the film.
History. Like many Jedi did for hundreds of years, Yoda built his lightsaber under the aegis of Professor Huyang, an architect droid who had been with the Jedi Order since its nascent days. As a first step, Yoda acquired a kyber crystal from the icy caverns of Ilum, a mission that proved to be very eventful.
What happened to Mark Hamill's face after A New Hope?
Hamill appeared more fresh-faced in the first entry, and while Luke doesn't look drastically different in the sequel, he does appear more aged. This, of course, was due to Hamill's car accident in January 1977, which resulted in a fractured nose and cheekbone.
He discovered his father's dice lying in the salt, but they vanished in his hand -- another trick of the Force. And when the Force reconnected him with Rey, she shut him out. Kylo had become Supreme Leader, all but destroyed his mother's Resistance, and struck down Luke Skywalker.
However, despite their varying levels of severity, the permanent pain that lives within both Luke and Vader was enough for them to tap into the dark side. That's the real reason Darth Vader sliced off Luke's hand, not to prove that fighting was futile, but in the hope that he'd corrupt Luke right then and there.
Luke's death transpires in much the same way, with the Jedi Master having accepted his death and fading into the void to become a Star Wars Force Ghost like his Master before him.
Since Anakin's defeat on Mustafar, he needed frequent visits to his bacta tank to survive, and even the Vader suit itself was crude enough for Palpatine to control him. So with an aged body, a mind out of balance and the surprise of Luke's attack, Vader was caught at his weakest point.
Ricocheted away from the Death Star and spun out of control, Vader was unable to stop Luke. The space station was destroyed, but Vader survived, and he flew into the far reaches of space. After the destruction of the Death Star, Darth Vader became obsessed with finding Luke Skywalker.
