Can someone help and I’ll give you a promise

1. Nasa may equip ships with special habitats

2. Spacecraft may draw energy from the sun

3. Spacecraft can use supersonic retropropulsion

Explanation:

spacecraft expose dangerous level's of radiation to astronauts: Nasa may equip ships with special habitats.

spacecraft cannot refuel in deep space: spacecraft may draw energy from the sun.

large spacecraft are difficult to land safely: spacecraft can use supersonic retro propulsion.

it's called a epic poem i believe, hope this ☺