More than 150 moons orbit worlds in our solar system. Known as natural satellites, they orbit planets, dwarf planets, asteroids, and other debris. Among the planets, moons are more common in the ...

How Many Planets Are There in the Solar System? There are 8 planets in our solar system. The planets orbit the Sun in ...

Well, the verdict is in. The Moon is not made of green cheese after all.

When the Sun expands into a red giant, it will swallow the inner solar system and raise the temperature in the outer regions.

Because of potential water and a source of heat, Olympus Mons has been suggested as a place to look for potential alien life; ...

During the red giant phase, both the Sun and Jupiter will shine brighter and become hotter. However, its moon Europa is ...

Recent flybys of the fiery world refute a leading theory of its inner structure—and reveal how little is understood about ...

The orange dwarf Gliese 710 is expected to come within 0.1663 light-years or 10,520 astronomical units in about 1.29 million ...

If our solar system seems stable, it's because our short lifespans make it seem that way. Earth revolves, night follows day, ...

NASA's discoveries reveal water's prevalence beyond Earth, from subsurface oceans on moons to vapor in exoplanet atmospheres.

New James Webb Space Telescope data reveal Pluto's high-altitude haze is a key driver of the climate on the dwarf planet, ...

If our Solar System seems stable, it’s because our short lifespans make it seem that way. Earth revolves, night follows day, ...