In this short explanatory video, Fraser Cain, editor of Universe Today, explores the most powerful objects in the Universe: quasars. In just the last few decades, our understanding of quasars has grown by leaps and bounds.

We now know what it is. And you too.

http://www.universetoday.com/73222/what-is-a-quasar/

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I love it when scientists discover something unusual in nature.

They have no idea what it is, and then, over decades of research, the evidence accumulates and scientists are able to figure out what's going on.

My favorite example? Quasars.

Astronomers realized they had a mystery on their hands in the 1960s when they turned the first radio telescopes toward the sky.

They detected radio waves emitted by the Sun, the Milky Way and some stars, but they also discovered bizarre objects that they could not explain.

These objects were small and incredibly bright.

They called them quasi-stellar objects or /"quasars/

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