Saturday, June 28, 2025
All the Bits Fit to Print
James Webb Space Telescope directly images its first low-mass exoplanet TWA 7b
The James Webb Space Telescope (JWST) has discovered its first new exoplanet, TWA 7b, notable for being the lowest-mass planet ever directly imaged outside our solar system. This young planet orbits the star CE Antilae about 111 light-years from Earth and was found within the star’s debris disk.
Why it matters: TWA 7b is ten times lighter than any previously imaged exoplanet, expanding our understanding of planet formation.
The big picture: JWST’s advanced infrared instruments and coronagraph enable direct imaging of faint, low-mass planets previously undetectable.
Stunning stat: TWA 7b’s mass is about 100 times Earth’s, or just 0.3 times that of Jupiter, making it uniquely light.
Commenters say: Many are impressed by JWST’s capabilities and excited about future exoplanet discoveries, while some discuss challenges of imaging faint planets near bright stars.