Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...

In the sky, Enaiposha is one of the most researched exoplanets. Discovered in 2009, it has a mass and radius that placed it ...

This year, a rare planetary parade will feature six planets aligning in a line, including Venus, Jupiter, Saturn, Mars, ...

Referred to as a planetary parade or alignment, this celestial event occurs when multiple planets in our solar system appear ...

For a few brief evenings around February 28, every planet in our solar system will be visible at once, with Mercury making a ...