Related topics: planets · liquid water · solar system · nasa · stars

Rocky? Habitable? Sizing up a galaxy of planets

The planets so far discovered across the Milky Way are a motley, teeming multitude: hot Jupiters, gas giants, small, rocky worlds and mysterious planets larger than Earth and smaller than Neptune. As we prepare to add many ...

Construction of Europe's exoplanet hunter PLATO begins

The construction of ESA's PLATO mission to find and study planets beyond our solar system will be led by Germany's OHB System AG as prime contractor, marking the start of the full industrial phase of the project.

Habitable water world exoplanets

There are currently about fifty known exoplanets whose diameters range from Mars-sized to several times the Earth's and which also reside within their stars' habitable zone – the orbital distance within which their surface ...

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