Discover how astronomers detect distant worlds and understand the science behind exoplanet hunting.
Exoplanets are planets that orbit stars outside our solar system. The first confirmed detection was made in 1992, and since then, astronomers have discovered over 5,000 confirmed exoplanets with thousands more candidates awaiting verification.
These distant worlds come in all sizes, from gas giants larger than Jupiter to rocky planets smaller than Earth. Some orbit close to their stars with scorching temperatures, while others are frozen worlds far from their suns.
The search for exoplanets is driven by one of humanity's most profound questions: Are we alone in the universe? By finding and studying these planets, especially those in habitable zones, scientists hope to discover worlds that might harbor life.
Finding planets in habitable zones where liquid water could exist.
Learning how planetary systems form and evolve over time.
Analyzing atmospheric composition for signs of habitability.
Developing new detection methods and instruments.