This video examines whether alien plants could actually be blue and what physics says about plant color beyond Earth. It explains how star type, light spectrum, and energy efficiency shape what colors ...

For decades, the search for life beyond Earth has focused on distant exoplanets and the rusty plains of Mars. Now, a small icy world in orbit around Saturn is emerging as one of the most compelling ...

A rocky, Earth-size planet located in our Milky Way galaxy may have an atmosphere around it, according to new research, raising the possibility that it could also have liquid water on its surface and ...