Projectiles, explosive and otherwise and lasers are what I see here. I propose that cosmic rays could be used as a weapon. Cosmic rays (energetic particles flying at a significant fraction of light speed) are already a problem for space travel. Anyone hanging around in space might have some routine countermeasures but huge amounts of these rays or exotic frequencies or lack of charge on the particle could overcome countermeasures appropriate for standard cirumstances.

Such a weapon might be called a particle beam. I envision more a particle shotgun.

Benefits 1: Fast particles traversing the innards are bad for living things and for electronics.

2: Fast particles are very small and pretty much impossible to detect until they are right next to you.

3: A neutral particle would be not be blockable with magnetic fields unless you somehow impart a charge to it first.

4: Shrapnel got nothing on atoms. 100 kg of lead atoms (tradition!) covers a lot of area.

5. Atoms are pretty much indestructable. They can go really fast. I like the idea of a shot thru a wormhole, banked gravitationally by a red giant, thru another wormhole and to the target.

Big drawback for movie scifi: Unsexy.

1: A particle beam wont look cool. It will be invisible.

2: Damage done is not cool. Stuff hit wont explode. Electronics will not work, or not work right.

3: Casualties are not cool. People hit wont explode. They might feel sick and throw up and die a while later, or maybe get cancer. This latter possibility offers some interesting scifi scenery, like first aid that includes cancer treatment.

Projectiles, explosive and otherwise and lasers are what I see here.

1. I propose that cosmic rays could be used as a weapon. Cosmic rays (energetic particles flying at a significant fraction of light speed) are already a problem for space travel. Anyone hanging around in space might have some routine countermeasures but huge amounts of these rays or exotic frequencies or lack of charge on the particle could overcome countermeasures appropriate for standard cirumstances.

Such a weapon might be called a particle beam. I envision more a particle shotgun.

Benefits 1: Fast particles traversing the innards are bad for living things and for electronics.

2: Fast particles are very small and pretty much impossible to detect until they are right next to you.

3: A neutral particle would be not be blockable with magnetic fields unless you somehow impart a charge to it first.

4: Shrapnel got nothing on atoms. 100 kg of lead atoms (tradition!) covers a lot of area.

5. Atoms are pretty much indestructable. They can go really fast. I like the idea of a shot thru a wormhole, banked gravitationally by a red giant, thru another wormhole and to the target.

Big drawback for movie scifi: Unsexy.

1: A particle beam wont look cool. It will be invisible.

2: Damage done is not cool. Stuff hit wont explode. Electronics will not work, or not work right.

3: Casualties are not cool. People hit wont explode. They might feel sick and throw up and die a while later, or maybe get cancer. This latter possibility offers some interesting scifi scenery, like first aid that includes cancer treatment.

2. Antimatter. Antimatter is a spectacular weapon since human made stuff is standard matter and so on contacting antimatter will change to energy with a massive explosion. A minefield of antimatter in space would be difficult to deal with.

• If a chunk of antimatter slowly traversing empty space is hit by a particle of normal matter, the particle and corresponding mass of antimatter is destroyed. The rest of the antimatter remains, although it would be blown into smaller bits. Each of these dispersing bits retains the power to destroy matter with an energetic explosion. So as an antimatter minefield persists it grows in size and will get more and more granular and harder to sweep.