Skygazers, mark your calendars because one of the coolest celestial events is coming around again toward the end of February.

A rare triple conjunction of Venus, Mars and Mercury is happening on the opposite side of the solar system to where Earth is, ...

Discover the only planet in our solar system that rotates clockwise. Learn why this 'rebel' planet spins backwards, how a ...

Call it a cosmic coincidence or a Valentine's Day gift from the heavens. Astronomers say the planet Venus — named after the Roman goddess of love and beauty — will shine its brightest in 2025 on ...

Venus, the second planet from our Sun, vividly demonstrates why the greenhouse effect makes life impossible. With an average surface temperature of roughly 1000º F (500º C) under a toxic atmosphere ...

This composite image was weeks in the making, as Horálek’s two "crossings" happened months apart. Mars traced its path ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The moon will this Saturday, Aug. 16, join a “planet parade” ...