The International Astronomical Union defines a planet as a celestial body that orbits the sun, is massive enough that gravity has forced it into a spherical shape, and has cleared away other objects ...

Sterling Martin found that when he returned home to Shiprock while studying biochemistry at the University of Iowa, he had difficulty communicating his work to his family in their native tongue.

In early 2017, the two of us, along with a few others, refreshed the debate on the definition of planet in scientific nomenclature. The International Astronomical Union’s (IAU) historic definitional ...