Space radiation preferentially destroys specific forms of amino acids,the most realistic laboratory simulation to date has found.The work suggests the molecular building blocks that form the "left-handed" proteins used by life on Earth took shape in space,bolstering the case that they could have seeded life on other planets.
介绍宇宙的英文文章关于什么都行,星球,航天飞机……60个字左右!急用!