Astronomers discover a rare group of dwarf galaxies

'Baby' Planet Is One of The Youngest Ever Detected, Astronomers Say

Astronomers Find a 3 Million Year Old Planet

Astronomers Discover a ‘Newborn’ World, the Youngest Known Transiting Exoplanet. At nearly three million years old, the exoplanet is about the age of a two-week-old baby in planet-years.