Their have been many discussions in the past about how many different alien species their are in the universe.
READ MOREPlanet 9 may have been part of another solar system, and our sun was powerful enough to steal it for our own.
READ MOREOne full year of Earth, captured in a timelaps of pictures as NOAA’s DSCOVER hovers above.
READ MORERemoveDebris operation will test a range of devices, including nets and harpoons, designed to sweep up litter orbiting Earth
READ MOREFlashing lights, flying spheres and orange triangles are some of the descriptions of UFO sightings reported by Halton residents in 2017.
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