Low-energy transfer

Low-energy transfer is like playing catch with a ball. When you throw the ball really hard, it takes a long time to reach your friend, and it might even go over their head. But if you throw the ball softly, it won't go as far or as high, but it will reach your friend easily.

In space, when we send a spacecraft from Earth to another planet, we want to save as much fuel and time as possible. One way to do this is by using a low-energy transfer. This means we don't launch the spacecraft at the fastest speed possible, but instead, we launch it at just the right speed and angle so that it can reach the destination planet without using too much fuel.

Think of it like a rollercoaster. If the rollercoaster is launched really fast from the start, it'll use up all of its energy quickly and run out of power before it reaches the end. But if it starts off slower, it can make its way up the hills and around the curves without using too much energy, and still reach the end.

So, using a low-energy transfer helps us save fuel and make the most of our resources when sending spacecraft to other planets. It's like throwing a soft ball instead of a hard one, or riding a rollercoaster that starts off slow and builds up gradually.