That’s Achernar, the sky’s ninth brightest star and the end star of the constellation Eridanus the River. Eridanus is one of the largest constellations and it flows in a long leisurely looping ...
Earth”, which could be home to alien life. The planet, known as HD 20794d, orbits in the habitable zone of a star similar to the sun, and is 20 light years away from our solar system - making it a ...
The discovery of a planet that is just 20 light-years away has been said to be the closest Earth analogue that scientists have ever uncovered.
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