Pandora, the latest in a long portfolio of University of Arizona's space science missions, has cleared its last major ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course. When ...

The search for habitable planets has taken a leap forward with new space telescopes probing exoplanet atmospheres for life. The James Webb Space Telescope (JWST) has begun analyzing distant worlds, ...