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.

Water flows along the east coast and across the western tropical pacific towards south america, while they both are directed towards that way,  el niño does not directly affect the southern flow of water along the coast. 

Answerhave flowing water either episodically or during only a portion of the year;