Titan Canyon Country

This animation shows a color-coded map from NASA's Dawn mission revealing the highs and lows of topography on the surface of dwarf planet Ceres.

Thomas Valdez tells how his early penchant for tinkering with things followed a path that led him to a career as a research engineer

In this month's sky, look for lovely crescent Moons at the start and end of the month. The September equinox brings the beginning of fall in the Northern Hemisphere. And Mars is at solar conjunctio...

Jets of icy particles burst from Saturn's moon Enceladus in this brief movie sequence of four images taken on Nov. 27, 2005.

Pan Found!

Flight across Titan

This colorized movie from NASA's Cassini mission shows a polar projection of the curious six-sided jet stream at Saturn's north pole known as "the hexagon" in the infrared.

View this beautiful visualization of the Dawn spacecraft on its journey to the main asteroid belt to Asteroid Vesta and Dwarf Planet Ceres.

Surrounding Earth is a giant magnetic field called the magnetosphere. Its shape is defined not only by the planet's north and south magnetic poles, but also by a steady stream of particles coming i...

This video from NASA's Dawn mission shows that the gravity field of Vesta closely matches the surface topography of the giant asteroid Vesta.

Welcome to the Scientist for a Day 2018-2019 essay contest.

This movie from Cassini, made possible only as Saturn's north pole emerged from winter darkness, shows new details of a jet stream that follows a hexagon-shaped path and has long puzzled scientists.

On unexplored worlds, the sound of science is a harmonious melody of chimes, clicks and mechanical whirrs.

JPL's Dawn mission is en route to rendezvous with the main-belt asteroids Vesta and Ceres, and is using ion propulsion to get there.

A scientist's interpretation and visualization of the January 2005 descent and landing of the European Space Agency’s Huygens probe on Titan.

Team members reflect on Spirit's six-years of roving Mars.

Cassini stares deep into the swirling hurricane-like vortex at Saturn's south pole, where the vertical structure of the clouds is highlighted by shadows. 

Edward Stone describes how he was always interested in what was new as a young man and how space physics got his attention.

Great Dark Spot  

Since the 1960’s, scientists have suspected that frozen water could survive in cold, dark craters at the Moon’s poles. 

A recreation of Huygen's historic descent to Saturn's giant moon Titan in January 2005.

NASA's Cassini spacecraft has spotted a glowing patch of ultraviolet light near Saturn's north pole that marks the presence of an electrical circuit that connects Saturn with its moon Enceladus.

The small moon Mimas passes in front of the larger moon Rhea, which is partly obscured by Saturn's rings, in this movie from NASA's Cassini spacecraft.

Sir Arthur C. Clarke's video greeting to NASA's Jet Propulsion Laboratory for Cassini's first close Iapetus flyby in 2007.

Animation of Cassini's final orbit, leading to a pass by the moon Titan which sends the spacecraft plunging into Saturn on Sept. 15, 2017.