Without getting too spoilery, Ad Astra depicts some handheld weapons in space. The movie is slllowww but visually wonderful. That isn't all that far fetched, b

Without getting too spoilery, Ad Astra depicts some handheld weapons in space. The movie is slllowww but visually wonderful. That isn't all that far fetched, both the USSR and the United States looked at various options for space weapons. Traditional firearms like the TP-82 carried by the soviets and various options were looked at for new weapons by both sides like the 'Soviet laser pistol' https://en.wikipedia.org/wiki/Soviet_laser_pistol https://en.wikipedia.org/wiki/Soviet_laser_pistol There are some documents out there like "The Meanderings of a Weapon Oriented Mind When Applied in a Vacuum Such as the Moon" (just Google the title, click the link you trust) that show various other types that we know were looked at. The Soviets even put an autocannon on the Salyut 3, and even fired 20 rounds on orbit https://en.wikipedia.org/wiki/Almaz#Defense_measures https://en.wikipedia.org/wiki/Almaz#Defense_measures