It could be really interesting. Harry might have to learn to use magic in zero - gravity conditions. His wand movements would be different, and spells like Wingardium Leviosa would have new challenges. He could also meet space - faring creatures that are either magical or non - magical, and his Hogwarts education would be adapted to the space environment, with astronomy becoming an even more important subject.
His character would likely be more independent. Growing up in space, away from the familiar structures of the wizarding world on Earth, he would have to rely on himself more. He might be less influenced by the social hierarchies and traditions of Hogwarts. For example, he may not care as much about being sorted into a particular house.
One plot idea could be that Harry discovers unique magical creatures that exist only in space. For example, there could be a species of floating, star - like creatures that can communicate through light pulses. Another idea is that he has to learn to control his magic in zero - gravity, which presents a whole new set of challenges compared to on Earth. Maybe he also forms an alliance with alien races who are also magically inclined and together they fight against a common dark force that threatens both the wizarding world and the galaxies.
One challenge could be controlling the assassin's violent tendencies. Since the person is being groomed to be an assassin, it's likely they have a natural inclination towards violence, and Harry has to find a way to temper that while also teaching self - defense.
No. The idea of Harry Potter being involved in such a situation goes against the values of the original series. The Harry Potter series is mainly about magic, friendship, and fighting against evil. This kind of fanfic concept not only distorts the characters but also involves inappropriate and unethical content.
The plot could start with Harry being born on a spaceship or a space colony. As he grows, he discovers his magical powers, which are different from those on Earth. He then gets a message or a sign that leads him to a quest. This quest might involve finding a lost magical object that has the power to save the space - wizarding community from a dark force. Along the way, he meets other magical beings from different parts of space and they form a team to complete the mission.
Most likely very negatively. The Harry Potter fan community values the positive aspects of the series. They would see this fanfic as a disrespect to the original work and its characters.
He'd be more disciplined. His character would be shaped by military values. He'd be less likely to act impulsively and more likely to think things through strategically.
Harry's character would be more attuned to the deeper magics. He would be less likely to jump into things without thinking. Since Flamel is a master of alchemy, Harry might be more interested in the scientific aspects of magic. He would also have a greater respect for life and magic's power, as Flamel, with his long life, would instill in Harry a sense of wonder and caution about the forces they deal with.