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Nasa finds solar system filled with as many planets as our own

Nasa has found an entire solar system with as many planets as our own. The discovery of a new planet around the Kepler-90 star, which looks like our own sun, means the distant solar system has a total of eight known planets. And those planets look like those in our own neighbourhood: rocky planets orbit close to the star, with gas giants further away. The star and its family of planets were already known about, having been detected by the Kepler space telescope. But the breakthrough came when astronomers found the new world, which was done using Google’s artificial intelligence technology. A computer was trained to look through the data from the Kepler space telescope, and look for signals that might belong to planets. And it found new planets within existing systems, by spotting signals that seemed to indicate something of interest but were too weak to have been spotted by humans. That suggests that there might be whole worlds and solar systems hiding within the data we’ve already collected, but which we had not noticed because there are simply so many signals to pick through. Kepler has collected four-years of data from looking at the sky and 150,000 stars – far more than humans could ever look through.

Read More: The Independent

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