
The discovery of a rocky planet outside of our solar system may seem like a no-brainer, but it’s the first time such an object has been detected. While most astronomers instinctively knew such planets must exist in the universe, one must always have proof before an idea becomes fact. Such proof has emerged.
While it is highly doubtful the planet, called Corot-7b, can sustain life thanks to the blistering 3,600 degree Fahrenheit temperature, it does validate that rocky planets exist in the universe and, more importantly, exist in great numbers. With great numbers comes the ever-increasing odds that life is out there in great numbers.
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The planet is called Corot-7b. It was first discovered earlier this year. European scientists then watched it dozens of times to measure its density to prove that it is rocky like Earth. It’s in our general neighborhood, circling a star in the winter sky about 500 light-years away. Each light-year is about 6 trillion miles.
Four planets in our solar system are rocky: Mercury, Venus, Earth and Mars.
In addition, the planet is about as close to Earth in size as any other planet found outside our solar system. Its radius is only one-and-a-half times bigger than Earth’s and it has a mass about five times the Earth’s.
Now that another rocky planet has been found so close to its own star, it gives scientists more confidence that they’ll find more Earth-like planets farther away, where the conditions could be more favorable to life, Boss said.
“The evidence is becoming overwhelming that we live in a crowded universe,” Boss said.