NASA reports cosmic milestone: over 5000 exoplanets have been discovered so far!
Among them are the most diverse celestial bodies: rocky planets like Earth, gas giants many times larger than Jupiter, “hot Jupiters” orbiting very close to…
The IAU Working Definition of an Exoplanet
Written by A. Lecavelier des Etangs and Jack J. Lissauer. In antiquity, all of the enduring celestial bodies that were seen to move relative to…
Cotton candy exoplanets: the lightest planets found so far
Several of the exoplanets discovered so far have exceptionally low densities. But that could be a misconception, astronomers say. Some exoplanets with surprisingly low density…