Does it make sense for countries to invest billions of dollars in space programs when millions of people in their country are living below the poverty line? Many people ask this question and I almost tire of answering it.
Let's talk about Duchenne Muscular Dystrophy (DMD) first. This is a terrible disease in which the victims progressively lose the ability to control their body. It affects almost only boys and shows itself when the boys are around age 5. They're wheelchair-bound by age 12 and will be dead before their 30th birthday. There is no cure. However there are treatments. They're based on crystalline (晶体) protein structures. whose formation is adversely (不利地)affected by the presence of Earth's constant unidirectional (单一方向的) gravitational field. However according to a study conducted by the Japan Aerospace Exploration Agency (JAXA) on the International Space Station (ISS). crystalline protein structures form regularly in microgravity conditions. which allows for targeted drugs designed to "double these boys' life spans (寿命)".
And you want to talk about feeding the hungry? We have space lettuce (生菜).And it's structurally and nutritionally equivalent to Earth lettuce. Space is pretty much everything there is which means you can make a lot of lettuce in space. In fact. one of the potential growth markets in lunar colonization(月球殖民)is food trade. Food can be mass produced and sent to Earth to feed the hungry. By the way as far as I am concerned as for feeding the hungry food distribution is the issue rather than food supply.
Space exploration is one of the best things that humanity has ever done.
