and their orbital period (by measuring… their orbital period).their radius (by the amount of light that they block),.their mass (by the pull on their parent star),.Over the past generation, we’ve not only successfully found thousands of planets by multiple different methods, but we’ve been able to measure: “They must be there,” you’d reason, “since there’s no way our Solar System is unique in all the galaxy.” But where’s the proof? As the case always is in science, it’s in the data you collect and in the measurements and observations you make. If you had looked to the skies just 25 years ago, you’d only be able to wonder about planets around other stars.
There’s no cure for that.” –Samuel Beckett
Four years ago, the world was shaken with the announcement of a planet around Alpha Centauri.
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