Using the Hubble Space Telescope, scientists have discovered that a cotton-candy-like Jupiter-sized planet located around 350 light-years away is shrinking and could be on the way to becoming a "sub-Neptune" or "super-Earth" sized world.
As well as being one of the lightest planets ever discovered, the extrasolar planet or "exoplanet" called V1298 Tau b also happens to be one of the youngest worlds ever discovered as it crosses or "transits" the face of its star.
