Back to today’s briefing

Story perspectives

TRAPPIST-1e Atmosphere Signals Spark Excitement for Habitability

9/30/2025

46 4

Summary

Story summary

Researchers from the University of St. Andrews report signs of an atmosphere on TRAPPIST-1e.
TRAPPIST-1e orbits within the star's habitable zone, suggesting liquid water.
Initial signals exist, but data require correction due to host-star contamination.
The James Webb Space Telescope (JWST) analyzes the atmosphere via starlight absorption; observations will rise from four to nearly twenty as Habitable Worlds Observatory (HWO) develops.

1 of 1

Story summary

Researchers from the University of St. Andrews report signs of an atmosphere on TRAPPIST-1e.
TRAPPIST-1e orbits within the star's habitable zone, suggesting liquid water.
Initial signals exist, but data require correction due to host-star contamination.
The James Webb Space Telescope (JWST) analyzes the atmosphere via starlight absorption; observations will rise from four to nearly twenty as Habitable Worlds Observatory (HWO) develops.