The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

The organic material found in a few areas on the surface of dwarf planet Ceres is probably of exogenic origin. Impacting ...

Filmmaker Adam Nemoy helps celebrate the 90th anniversary of Pluto's discovery this month at the 6th annual 'I Heart Pluto' ...

The building blocks of life could have been delivered to Ceres by one or more space rocks from the outer asteroid belt.

Using the Keck Planet Imager and Characterizer (KPIC), astronomers have performed high-resolution spectroscopic observations ...

Pluto isn't alone—it's part of the Kuiper Belt with possibly hundreds of other planet-sized objects. Because Pluto hasn't achieved gravitational dominance in its region, the International Astronomical ...

The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are ...

Gaia-4b is considered a super-Jupiter planet, a relatively cold gas giant, orbiting its star over 570 Earth-days. That star ...

Explore the impact of stellar flares on the potential for alien life. Discover how higher levels of UV radiation can both ...

Enaiposha orbits a red dwarf star 47 light years away from our own Earth, upending previous theories of how planets are formed and structured and giving scientists a tempting window into the ...