Comparative Planetology

Proposal touts value of broader, less detailed studies of exoplanets.

Is it a case of nature versus nurture when it comes to two "cousin" exoplanets?

Study finds history of Titan’s landscape resembles that of Mars, not Earth.

A new study reveals that the distant planet HAT-P-26b has a primitive atmosphere composed almost entirely of hydrogen and helium.

NASA’s flying observatory SOFIA recently completed a detailed study of a nearby planetary system.

A new study predicts that most habitable planets may be dominated by oceans spanning over 90% of their surface area.

A new study explores potential climates of a planet orbiting two suns.

Astronomers have detected an atmosphere around the super-Earth GJ 1132b. This marks the first detection of an atmosphere around a low-mass super-Earth.

New research suggests that a haze build-up on ancient Earth may have been self-limiting, cooling the surface by about 36 degrees Fahrenheit – not enough to cause runaway glaciation.

Astronomers and geoscientists have joined forces to study the mix of elements in exoplanet host stars, and to consider what this reveals about their planets.