read the text. to the naked eye, mars seems as distant as the stars. but humans may set foot on the red…

read the text. to the naked eye, mars seems as distant as the stars. but humans may set foot on the red planet in the near future, according to scientists at the national aeronautics and space administration (nasa). to make it happen, nasa is pursuing creative solutions to the problems posed by deep space. specially designed habitats and spacesuits may offer a defensive shield to protect astronauts from extended exposure to radiation. nasa is also working on an electric propulsion system that draws energy from the sun. this system would let ships refuel in deep space, without space stations nearby. most ambitious of all, nasa is studying supersonic retropropulsion, a process that fires engines during landing, to help spacecraft land on marss surface without crashing. match the problems with their solutions. spacecraft may draw energy from the sun. spacecraft can use supersonic retropropulsion. nasa may equip ships with special habitats. problem solution spacecraft expose astronauts to dangerous levels of radiation. spacecraft cannot refuel in deep space. large spacecraft are difficult to land safely.

read the text. to the naked eye, mars seems as distant as the stars. but humans may set foot on the red planet in the near future, according to scientists at the national aeronautics and space administration (nasa). to make it happen, nasa is pursuing creative solutions to the problems posed by deep space. specially designed habitats and spacesuits may offer a defensive shield to protect astronauts from extended exposure to radiation. nasa is also working on an electric propulsion system that draws energy from the sun. this system would let ships refuel in deep space, without space stations nearby. most ambitious of all, nasa is studying supersonic retropropulsion, a process that fires engines during landing, to help spacecraft land on marss surface without crashing. match the problems with their solutions. spacecraft may draw energy from the sun. spacecraft can use supersonic retropropulsion. nasa may equip ships with special habitats. problem solution spacecraft expose astronauts to dangerous levels of radiation. spacecraft cannot refuel in deep space. large spacecraft are difficult to land safely.

Answer

Brief Explanations:

  1. For the problem of spacecraft exposing astronauts to dangerous levels of radiation, the solution is that NASA may equip ships with special habitats as they can offer a defensive shield against radiation.
  2. For the problem of spacecraft not being able to refuel in deep - space, the solution is that spacecraft may draw energy from the sun as it allows ships to refuel without space stations nearby.
  3. For the problem of large spacecraft being difficult to land safely, the solution is that spacecraft can use supersonic retropropulsion which helps in landing without crashing.

Answer:

Spacecraft expose astronauts to dangerous levels of radiation - 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 retropropulsion.