cargo rocket not found in SE

im in a save with SE, and i have done everything, looked in my crafting menu, and looked up every buzzword to lead me to the cargo rocket research, but i cannot find it, and i dont know what to do, this is realy confusing, can anyone help?

a pic of my crafting menu, the relevant part, showing that its not in there

a pic of my research menu, showing the available research before space science not containing it