Contributing Editor Korey Haynes has produced a stellar story, How we study our planet, exploring the way we use Earth-orbiting satellites to inform us about our home. The array of orbiting ...

An elusive Earth-like planet in our solar system could finally be discovered within the next few years. Known as Planet Nine or Planet X, it is a hypothetical planet that has long been rumoured to ...

told The Associated Press some people colloquially refer to the type of conjunction happening this weekend as a "Venus kiss," because of the planet's relatively close proximity to the Earth.

Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the ...

Understanding how the Earth and moon formed is important for piecing together the history of the solar system and answering questions like how long planets take to form, what planets are made of, and ...