摘要
一项新研究发现：一对被认定为处在婴儿期的巨型全等子星其诞生时间居然相隔500，000年。这一新发现的双星系统位于猎户座星云之中。距地球1，500光年的猎户座星云就象地球附近的一个“恒星产房”，忙于生产恒星。1光年即光在一年之中所穿行的距离，约为6万亿英里（10万亿公里）。
Bouncing baby stars considered identical twins were oddly born 500,000 years apart, a new study finds. The newly discovered star pair is located in the Orion nebula, a nearby ＂mater- nity ward＂ bustling with stellar-birth activity and located 1,500 light-years from Earth. One light year is the distance light will travel in a year, or about 6 trillion miles （10 trillion kilometers）.
