Tag: white dwarfs
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Twinkle twinkle, little star, we can’t see you where you are
Astronomers often have to infer the presence and properties of objects they can’t see directly. Sometimes, as with black holes, we have a lot of data, thanks to matter swirling around and falling in. Sometimes, however, only the gentle tug of gravity reveals a hidden object. That’s the case for a companion body to a…
Galileo's Pendulum 