Delta-v budget

A delta-v budget is like a budget you have for shopping. It's the amount of fuel you can use when traveling through space. Delta-v stands for "change in velocity" which is the amount of speed that a spaceship needs to reach its destination. When traveling, the amount of fuel you need to bring depends on the how much delta-v you need to get to your destination. So, it's like a shopping budget, but you're shopping for fuel instead of food or clothes.