A pulsar is a tiny, extremely dense leftover star far away in space that spins and sends out regular beats of radio waves — like a lighthouse, but with radio, not light you can see with your eyes. Each sweep can be timed so sharply that astronomers use pulsars as clocks.

A pulsar脈衝星 is是 a tiny, extremely dense leftover star太空中一顆很小、密度極高的殘餘星體 far away in space在很遠的太空裡 that它 spins and sends out會自轉並發出 regular beats of radio waves規律的無線電波脈動 — like a lighthouse像燈塔一樣, but只是 with radio用的是無線電, not light you can see with your eyes而不是你眼睛看得到的光。Each sweep每一次掃過 can be timed so sharply都能精準計時, that以至於 astronomers天文學家 use pulsars as clocks把脈衝星當作時鐘用。

The name was made in 1968 by the British astronomers Antony Hewish and Jocelyn Bell, after the pattern of quasar. You will meet it in science class and space news, not in daily chat.

The name這個名字 was made是在1968年創造的 in 1968 by the British astronomers由英國天文學家 Antony Hewish and Jocelyn Bell安東尼·休伊什和喬瑟琳·貝爾, after the pattern of quasar仿照quasar(類星體)的造字方式。You你 will meet it會在...遇到它 in science class and space news科學課和太空新聞裡, not而不是 in daily chat在日常聊天裡。

Though actually it is not “like a star” in the everyday yellow-sun way: a pulsar is the leftover core of a huge dead star, spinning hard after the star exploded.

Though actually不過其實, it它 is not不是 “like a star”「像一顆星星」 in the everyday yellow-sun way那種日常黃色太陽的樣子: a pulsar脈衝星 is是 the leftover core殘留下來的核心 of a huge dead star一顆巨大死亡恆星的, spinning hard劇烈自轉 after the star exploded在那顆星爆炸之後。