Astronomers Capture First Image of Baby Exoplanet Forming in Star's Disk

October 11, 2025
Astronomers Capture First Image of Baby Exoplanet Forming in Star's Disk
  • Astronomers have captured the first direct image of a baby exoplanet, WISPIT 2b, forming within a gap in its star's protoplanetary disk, offering new evidence of planet formation processes.

  • This groundbreaking observation was made using the Magellan Telescope in Chile and the Large Binocular Telescope in Arizona, with initial detection from the European Southern Observatory's VLT-SPHERE instrument.

  • WISPIT 2b is a gas giant about five times the mass of Jupiter, approximately five million years old, orbiting the star WISPIT 2, which is 437 light-years from Earth.

  • Its position within the disk's gap suggests it is actively shaping its environment by sweeping up material and pushing dust aside as it continues to grow.

  • Detection of hydrogen H-alpha emission using MagAO-X confirms that WISPIT 2b is actively accreting material, supporting theories of planet formation within the disk gap.

  • The new images depict WISPIT 2b as a small purple dot within a bright dust ring, with a faint outer ring indicating ongoing accretion and growth.

  • Astronomers also identified a potential sibling planet in another inner ring gap, suggesting multiple planets may be forming in this system.

  • Published on August 26 in The Astrophysical Journal Letters, these findings offer a rare, direct glimpse of a protoplanet in the act of formation, confirming longstanding theories about gas giant development.

Summary based on 1 source


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