NASA's Spitzer telescope has discovered 7 new expolanets in the Trappist-1 solar system that orbit around a single star. These planets appear to be rocky planets, including various Earth-sized planets that could hold liquid water. These planets are the closest exoplanets that we have found to our solar system.
This discovery is a huge breakthrough because it could be one of the most significant pieces of the puzzle involved in finding new planets that are habitable and life beyond Earth. This is a major breakthrough in answering one of humanity's biggest questions "are we alone?
Right now, these planets are about 40 light years from Earth, and once the James Webb Space Telescope is launched, we might be able to learn even more about them in the next few years.
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