Elucidate the astronomical methods that have provided insights about the universe.

The Lased Interferometer Gravitational Wave Observatory or known as LIGO is one way of getting an idea about the universe. It is an astronomical method. It detects gravitational waves that is emitted by bodies in space. Through the gravitational waves, it helps us understand the behavior of other bodies outside in space, even to those ones that we do not know they exist.

Dall of the above all of the choices make sense

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