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NASA Discovers Earth-Sized Exoplanet in Habitable Zone.

Science & Technology | Dated: 23 Feb 2026

NASA James Webb Space Telescope has discovered a new Earth-sized exoplanet orbiting a red dwarf star within its habitable zone. The planet, designated Kepler-452c, shows signs of atmospheric water vapor, making it a prime candidate for astrobiological study.

🎯 Key Highlights:

  • It is located approximately 120 light-years away from Earth.
  • The discovery was confirmed using transmission spectroscopy.
  • Red dwarf stars are cooler and smaller than our Sun.

💡 Other Important Facts:

  • Discovery: Exoplanet.
  • Telescope: James Webb.
  • Feature: Water Vapor.

📚 Test Your Knowledge:

Which space telescope was used by NASA to recently discover an Earth-sized exoplanet with water vapor signs?

Correct Answer: James Webb Space Telescope

🚀 Quick Recap:

About James Webb Telescope

  • Launch Date - Dec 25, 2021
  • Orbit - Sun-Earth L2