But it's not this rhythmic noise that makes the Crab Pulsar a wonder.
但对于蟹云脉冲星来说,最奇异的并非这些脉冲。
宇宙的奇迹
But in the Crab Pulsar, the force of gravity is so extreme that the empty space inside the atoms is squashed out of existence, so all you're left with is incredibly dense matter.
The Crab Pulsar (PSR B0531+21) is a relatively young neutron star. The star is the central star in the Crab Nebula, a remnant of the supernova SN 1054, which was widely observed on Earth in the year 1054. Discovered in 1968, the pulsar was the first to be connected with a supernova remnant.