In 2004, astronomers spotted a spectacular gamma-ray explosion bursting off a neutron star in the Sagittarius constellation, 50,000 light years from Earth.
在2004年,天文学家发现了在距离地球50000光年远的人马座上的一颗中子星产生出的壮丽伽马射线爆炸景象。
After months of observations, he noticed that one unidentified yet persistent source of noise was coming from the direction of the constellation Sagittarius.
经过几个月的观测之后,他注意到一个来自人马座方向的无法识别,但一直持续不断的噪声源。
Astronomers in Japan say one of the best-known nebulae-the Trifid, in the constellation sagittarius-owes its splendor to a smashup between two clouds of gas and dust.
日本的天文学家说,最知名星云之一的人马座三裂星云,它的壮丽景观可正是由两朵气体和尘埃云的碰撞造成的。
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