
Today, astronomers have more tools at their disposal than ever before. Technology has reached a point that scientists can finally spot planets outside of our own solar system. That's an incredible achievement, of course, but what was at first just a slow trickle of exoplanet discoveries has become an all-out flood, and that's more of a problem than you might think. As Space.com reports, astronomers currently know of over 4,100 exoplanets. Those are the alien worlds that have been confirmed to ex...
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