A ship sails calmly across the sea..suddenly the ship splits in two with an explosion..sinks in the sea..a submarine over 1000 km slowly rises to the surface of the sea. It is not clear who first came up with the...
It shows the remains of a star that exploded thousands of years ago! The entire nebula is about 110 light-years across, showing only a small fraction of it.
What are S-Stars??? S-stars are stars orbiting the supermassive black hole (Sagittarius A) at the center of our Milky Way Galaxy. They can travel at a speed of 8000 km per second. That is 2.5% of the speed of light....
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