Black Holes: The Universe's Most Mysterious Objects
Explore the fascinating physics behind black holes and how they shape galaxies.
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Explore the fascinating physics behind black holes and how they shape galaxies.
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Learn about the incredible variety of planets discovered outside our solar system.
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Discover how this revolutionary telescope is changing our understanding of the cosmos.
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About 1 million Earths could fit inside the Sun.
A teaspoon of neutron star material weighs about 4 billion tons.
The observable universe is 93 billion light-years in diameter.
Saturn has such low density that it would float in water if there was a bathtub big enough.