Black Holes Flashcards, test questions and answers
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What is Black Holes?
A black hole is a region of spacetime where gravity is so strong that not even light can escape its pull. Black holes are some of the most mysterious and fascinating objects found in outer space. They form when very large stars collapse under their own weight, leaving behind a small, dense core containing an enormous mass.Black holes were first predicted to exist by Albert Einstein’s Theory of General Relativity in 1915, but it wasn’t until 1964 that they were confirmed to exist after astronomers identified a massive object at the center of our Milky Way galaxy – what we now know as Sagittarius A*. The incredible force generated by black holes makes them incredibly interesting for scientists to study. The immense gravitational forces bend light around the edges of these objects, creating distortions in the fabric of space-time which no other phenomenon can match. In addition, any matter caught within this powerful tug disappears forever, because nothing can escape from inside a black hole. This means that they are essentially invisible to us yet still potentially detectable through their effects on nearby stars and gas clouds making them one of the most elusive phenomena in all astronomy. Although we still don’t fully understand how black holes operate or what happens inside them (or if anything escapes), research continues into this area with new theories being developed every day. Given their incredible power and mystery, it’s likely that there will be many more surprises lurking out there waiting for us to discover about these enigmatic cosmic objects.