Nasa is to host a major press conference on Wednesday to reveal a ‘discovery beyond our solar system’.
The space agency says the secretive event, will ‘present new findings on planets that orbit stars other than our sun, known as exoplanets’.
It raises hopes that NASA could reveal details of exoplanets capable of holding life.
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The event will take place on 22 February at 1pm New York time, and will be streamed live on NASA’S television station and on its website.