美国国家公共电台 NPR--Astronomers at Britain's Durham University have found an ultramassive black hole

Astronomers¹ at Britain's Durham University have found an ultramassive black hole

Transcript²

It's one of the biggest ever — roughly 30 billion times the mass of our sun. It's the first to be found using gravitational lensing. That's when a nearby galaxy³ acts like a giant magnifying glass.

SACHA PFEIFFER, HOST:

Good morning. I'm Sacha Pfeiffer. Astronomers at Britain's Durham University have found an ultramassive black hole. It's one of the biggest ever, roughly 30 billion times the mass of our sun, and about as big as a black hole could theoretically be. It's the first to be found using gravitational lensing. That's when a nearby galaxy acts like a giant magnifying glass. For the scientists who pulled this off - pun alert - it's definitely a big bang. It's MORNING EDITION.

1 astronomers   

n.天文学者，天文学家( astronomer的名词复数 )

参考例句：

• Astronomers can accurately foretell the date,time,and length of future eclipses. 天文学家能精确地预告未来日食月食的日期、时刻和时长。 来自《简明英汉词典》
• Astronomers used to ask why only Saturn has rings. 天文学家们过去一直感到奇怪，为什么只有土星有光环。 来自《简明英汉词典》

2 transcript   

n.抄本，誊本，副本，肄业证书

参考例句：

• A transcript of the tapes was presented as evidence in court.一份录音带的文字本作为证据被呈交法庭。
• They wouldn't let me have a transcript of the interview.他们拒绝给我一份采访的文字整理稿。

3 galaxy   

n.星系；银河系；一群(杰出或著名的人物)

参考例句：

• The earth is one of the planets in the Galaxy.地球是银河系中的星球之一。
• The company has a galaxy of talent.该公司拥有一批优秀的人才。