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Nasa has announced that scientists have found a new solar system filled with planets similar to the Earth which could support life.
Three of the seven planets represent the "holy grail for planet-hunting astronomers", as they are the right temperature to allow alien life to flourish, researchers have said.
This means they are capable of having oceans, again suggesting that life could flourish on them.
Watch the announcement live, here...
In total Nasa have discovered six inner planets which can support life as they are not too hot or too cold.
No other star system has ever been found to contain so many Earth-sized and rocky planets, of the kind thought to be necessary to contain aliens.
British astronomer Dr Chris Copperwheat, from Liverpool John Moores University, who co-led the international team, said: "The discovery of multiple rocky planets with surface temperatures which allow for liquid water make this amazing system an exciting future target in the search for life."
The researchers might soon be able to find evidence of life on the planets.
The planets were found using "transit photometry", which works by watching out for when a planet passes, or transits, in front of its host star - blocking out a small amount of light, allowing us to see the planet and learn about its size, the Independent reports.
The first earth-like planet to be discovered was, Kepler-186f, a rocky planet that lies within the so-called "habitable zone" and is similar in size to earth.
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