The Saint Louis Science Center strives to connect you with the most current and credible scientific information available. Below are areas of newsworthy scientific frontiers that we are following closely.
Mars has reached eastern quadrature for its 2020 apparition. Quadrature is when a celestial body due to elongation, appears perpendicular to the direction of the Sun. This is a concept that allowed Copernicus to state which planets are farther from the Sun than Earth.