Physical Science

What is a Black Hole

A black hole is one of the theoretical remnants of a dying star – one so large that the collapsing core left behind after its explosive supernova is so gravitationally powerful that even light cannot escape. At present there are…
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Mercury Astronauts

THE NASA MERCURY PROGRAM. It started long before Alan Shepard said, “Let’s light this candle,” as he sat atop his rocket for a “blast” in space. Of course, while he was brave as they come, he had already peed his…
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Black Holes

Black holes are regions (not specifically objects) in space in which the gravitational force is so strong that nothing, not even light can escape from it. Black holes are so strong that even time is distorted near the event horizon…
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