Comprehensive coverage

Kepler-22b

Comparison of the sizes of the two planets, Kepler-20e and Kepler-20f with Earth and Venus. Image: NASA

The Kepler space telescope discovered two Earth-sized planets for the first time

  • 17 תגובות
Kepler-22b, image: NASA

Kepler discovered the first planet located in the center of the habitable zone

  • 19 תגובות
Science website logo
SEARCH