The evolution of the Trappist-1 planetary system

Planets are bodies that orbit a star and have sufficient gravitational mass that they form themselves into roughly spherical shapes that, in turn, exert gravitational force on smaller objects around them, such as asteroids ...

Exoplanets may contain more water than previously thought

We know that the Earth has an iron core surrounded by a mantle of silicate bedrock and water (oceans) on its surface. Science has used this simple planet model until today for investigating exoplanets—planets that orbit ...

Image: Juice snaps moon en route to Earth

During the first step of humankind's first-ever lunar-Earth flyby, ESA's Jupiter Icy Moons Explorer (Juice) mission captured this stunning view of the moon.

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