Astronomers have discovered an alien planet right in our solar system's backyard, but residents of Earth shouldn't get their hopes up for an exploration mission anytime soon. The new found world is much too far away for probes to visit using current technology, experts say.
Researchers announced Tuesday that the scorching-hot alien planet Alpha Centauri Bb, which is about as massive as Earth, resides in the three-star Alpha Centauri system. While no other star is closer to our sun than the Alpha Centauri trio, they're still about 4.3 light-years away, making a close-up look at the planet pretty much impossible right now.
A robotic exoplanet mission launching today "would require about 40,000 years to get to Alpha Centauri," Greg Laughlin, an astronomer at the University of California, Santa Cruz, told reporters Tuesday. "So, given our propensity for instant gratification, that's not really an option that's on the table."
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