Exoplanet tally set to pass 4,000 mark
The number of planets detectedThe number of planets detected around other stars - or exoplanets - is set to hit the 4,000 mark. The huge haul is a sign of the explosion of findings from searches with telescopes on the ground and in space over the last 25 years. It's also an indication of just how common planets are - with most stars in the Milky Way hosting at least one world in orbit around them.
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