Black holes are the most fascinating objects in the known Universe.
Black holes are some of the strangest and least understood objects in space.
These objects are extremely dense, with a gravitational force so strong that light can’t escape.
That is the reason we can’t see them directly. But we know they are there because of the effect they have on other celestial objects around them.
There are thought to be millions of them in our galaxy, the Milky Way.
At the centre of our galaxy lies a supermassive black hole called Sagittarius A*. It contains a mass four million times that of the sun.
Sunlight travelling at 18 million kilometres per minute would take roughly 26,000 years to reach the black hole at the centre of our galaxy.
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