Purely hypothetical,

1st Attack: A planet on 15:125:18 fires a Interplanetary missile towards 15:420:12 which has 25 Light Lasers.
2nd Attack: Now, the same planet, 15:125:18 fires as well a Interplanetary missile towards 08:366:17 which has also 25 Light Lasers.
Q: Does the 2nd attack has the same impact (damage) as the first attack?
P.S. What is the speed from those missiles and does it come up on the Fleet screen?