"IS this an intergalactic housing estate? Seven Earth-sized worlds have been found orbiting a single star 39 light-years away. And these new worlds could hold life.
The red dwarf star TRAPPIST-1, which sits in the constellation of Aquarius and barely the size of Jupiter, was thought a year ago to have three planets in orbit around it.
This initial discovery caused scientists to keep a close eye on the star. But now a study published in the science journal Nature has exposed a wealth of worlds which are generally thought of as being rare.
NASA has just made the incredible announcement: Seven Earth-sized exoplanets around the one star. All are thought to be mostly made up of rock and could potentially support liquid water on their surfaces.
Three are close to the star, and may be a little too hot to hold much liquid water.
One - the seventh - may be an ice world.
But three of them fall comfortably in the “habitable zone” - orbits neither too hot nor too cold.
That means they may have strong potential to sustain life as we know it."
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