Planetary Science

In everyday language, a new planet in our solar system often means a world never before confirmed, lurking in the outer darkness and waiting to be discovered. In practice, astro...

Venus has no natural satellite, so the phrase Venus moon refers to the absence of a moon rather than the name of one. This overview explains why, how Venus compares to Earth and...

Current evidence suggests that ancient Mars had conditions suitable for liquid water and possibly for microbial life, but whether life ever arose or left detectable signs remain...