Sagittarius A*
A Moment of Science

Sagittarius A*

B2Upper-intermediateOctober 1, 20262 min
  • Documentary
  • Science

Sagittarius A*

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Sentence 11 of 12 · 0:41

Don't let the name confuse you.

, ,

to distinguish the black hole from the greater region where it's located.

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  • B20:41
  • B20:46
  • B20:56
  • C11:11
  • B21:19
  • B21:19
  • B21:24
  • B21:27

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B2

B2 · Upper-intermediate

Comfortable if you already follow TV news

A1 15%A2 55%B1 15%B2 5%C1 10%
  • 85% of the words are B1 or easier.
  • 157 words a minute: a natural pace.
  • 13 harder words (B2 and up) in the whole episode.

Transcript

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0:00

How do you photograph something that doesn't reflect light? It may seem hard to imagine, but that's exactly what scientists announced they'd done in May of 2022 when they revealed a photograph of a supermassive black hole at the center of our Milky Way galaxy.

0:20

A black hole is a region of space so dense that not even light can escape its gravity. They're formed when massive stars collapse in on themselves. But as they pull in more matter, they can get even bigger. This one is over four million times as massive as our Sun.

0:35

The black hole is called Sagittarius A Star. Don't let the name confuse you. The star, at the end, is just an asterisk that scientists say out loud to distinguish the black hole from the greater region where it's located.

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