Space & Astronomy

What Happens Near a Black Hole

An explanation of how black holes form, how scientists observe them, and why time behaves strangely near them.

B29 min

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1A black hole forms when a very massive star runs out of fuel and collapses.

2Its gravity becomes so strong that nothing, not even light, can escape from it.

3Scientists cannot see a black hole directly, so they study the matter around it.

4Gas that falls towards a black hole heats up and shines very brightly.

5At the centre of our galaxy lies a black hole millions of times heavier than the Sun.

6In twenty nineteen, astronomers released the first real picture of a black hole's shadow.

7The image showed a glowing orange ring with a dark circle in the middle.

8Time near a black hole passes more slowly than it does far away.

9Anything that crosses the edge of a black hole can never come back.

10Even so, black holes slowly lose energy and may disappear after an unimaginably long time.

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