1 AU is the average distance between the Earth and the Sun and is approximately equal to 150,000,000 km (or 1.5 × 10 11 m). Distances between the Earth and other stars and galaxies are measured ...

Even more exciting, the model suggests that some Earth-like planets could form in the habitable zone—the region around a star ...

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

Large and small planets are born from very different circumstances, according to data from NASA’s now-retired space telescope ...

Barnard's Star is a small, dim star of the type that astronomers call red dwarfs. Consequently, even though it is one of the ...

The sun is our planet’s source of natural illumination, and though we’ve mastered making artificial light sources, it remains ...

Between the orbits of the terrestrial planets and the gas giants, there are millions of asteroids – rocky objects that orbit the Sun and vary in size from 1km to around 1000km. Like planets ...

A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system ...

With the exception of Pluto, planets in our solar system are classified as either terrestrial (Earth-like) or Jovian (Jupiter-like) planets. Terrestrial planets include Mercury, Venus, Earth, and ...

The third planet from the sun, Earth is the only place in the known ... some of which are about the size of Earth, and a handful of which orbit in the zones around their stars that are just ...

A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system, according to a new study.

Astronomers believe that our solar system may still hold surprises, with ongoing efforts to find a hidden ninth planet, often referred to as Planet Nine or Planet X. If confirmed, this discovery ...