在宇宙里,在星际之间,并不是空无一物,而是飘散着许多宇宙尘埃。不过长期以来,天文学家仰着头在天际间搜寻,却找不到它太多的踪迹。因此,一直不清楚宇宙尘究竟从何而来。而今,英国天文学家观测到了巨量的宇宙尘。宇宙尘原来是超新星爆炸的物质遗骸,犹如刚击发的枪口冒出的硝烟 In the universe, between the stars, it is not empty, but many cosmic dusts are floating. However, for a long time, astronomers looked up and searched the sky, but could not find too much of it. Therefore, it has not been clear exactly where the cosmic dust came from. Today, British astronomers have observed a huge amount of cosmic dust. Cosmic dust was originally a material remains of a supernova explosion. It was like the gun smoke that had just been fired at the muzzle.