crab nebula
英
美
- crab n.蟹;阴虱;爱争吵的人;[植]山楂子v.捕蟹;使横行;批评;抱怨
- nebula n.[天]星云;[医]角膜云翳
Noun:
-
a remnant of a supernova detected first in 1054 AD
- Its remnants form the Crab Nebula.
它的残余物组成了蟹状星云。
- Today, the Crab Nebula is still expanding and it will eventually dissolve in the interstellar gas cloud nearby.
蟹状星云仍然在膨胀最终会溶入星际物质而消散。