Yeah the discovery of planets in other solar systems is a somewhat recent trend in astronomy. But a lot more than 2 have been discovered now. It was a pretty big deal when the first discoveries started to come in. Due to the fact the method of discovery was new, it caused lots of astronomers to revisit other stars and find evidence of planets there.
Looking at your own solar system can be more difficult. The basic analogy is that if you stand in one place, or even one room of your house, you can see a lot more of your neighborhood and the insides of other peoples' houses than you can see in your own.
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