https://www.youtube.com/watch?v=Q4KjvPIbgMI If signs of life are found on a planet beyond our solar system sometime in the next decade, they'll most likely be on a planet discovered by a NASA satellite that's scheduled to launch on Monday. The mission is called TESS , short for Transiting Exoplanet Survey Satellite, and it will spend two years scanning almost the entire sky to search for alien worlds. Scientists already know of over 3,000 planets around distant stars, thanks in large part to a previous NASA mission called Kepler . It spent years staring at stars in a small patch of the sky to look for a tell-tale dimming that meant a planet had passed by and blocked some of the starlight. The Kepler mission revealed that planets of all sorts of sizes...
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Get Ready For the Next Big Thing In NASA's Search For Earth's Twin