Elias 2-24 b: Youngest Known Exoplanet

On 17th September 2026, astronomers reported the discovery of Elias 2-24 b, described as the youngest known exoplanet, orbiting a very young star surrounded by a protoplanetary disc.

  • The planet is estimated to be only about 1–2 million years old, offering a rare glimpse into the earliest stages of planet formation.
  • It lies within a prominent gap in the star’s protoplanetary disc—the rotating disc of gas and dust from which planets form.
  • The discovery supports the idea that giant planets can form very rapidly, while their host stars are still in an early evolutionary stage.
  • Studying such systems can help ....
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