The University of Arizona will contribute to a NASA space mission to study the atmospheres of planets outside of our solar ...

A new way of measuring structures deep inside Earth has highlighted numerous previously unknown blobs within our planet's ...

Jan. 21. A planet parade is when several of our solar system's planets are visible in the night sky at the same time. There ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

All these questions and more will be answered at Hands-on Astronomy, a free science event for astronomers young and old on ...

Arrokoth is composed of two separate bodies, 3 and 9 miles across. In the distant past they rotated so slowly about each other that their mutual gravitational attraction caused them to come together ...

Astronomers using the James Webb Space Telescope (JWST) have uncovered a planet so extraordinary it has defied all existing ...

Mars is home to perhaps the greatest mystery of the solar system: the so-called Martian dichotomy, which has baffled scientists since it was discovered in the 1970s.