Ranger 9 Impact

These two false-color views from NASA's Cassini spacecraft show detailed patterns that change during one Saturn day within the huge storm in the planet's northern hemisphere.

This graphic shows in a series of three images how Saturn's rings, after they became tilted relative to Saturn's equatorial plane, would have transformed into a corrugated ring.

This animation illustrates Jupiter's magnetic field.

RTG fit and test

Blanket Protection

High-Altitude Clouds

This computer-generated animation shows all of Cassini's orbits - affectionaly called the "ball of yarn" by mission planners.

This movie uses data from NASA's Dawn spacecraft to simulate the view from the spacecraft flying over the surface of the giant asteroid Vesta.

This visualziation shows the major fragments of comet Showmaker-Levy 9 colliding with Jupiter in 1994.

This short computer-animated film highlights Cassini's accomplishments and Saturn and reveals the science-packed final orbits between April and September 2017.

This colorful spectrogram represents data collected by Cassini's Radio and Plasma Wave Science instrument as it crossed through Saturn's D ring on May 28, 2017.

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

NASA's Cassini spacecraft, in orbit around Saturn for nearly 13 years, is beginning its Grand Finale — and it's thanks to some Crazy Engineering!  A team of engineers called astrodynamicists use ma...

This time-lapse video captures a portion of the path that tiny Phobos takes around Mars. 

NASA JPL Software Engineer Melissa Soriano describes the third potential target for Scientist for a Day contestants: Pluto's moon Charon.

Scientists working with NASA's Dawn spacecraft have created a new video showing the giant asteroid Vesta as the spacecraft approaches this unexplored world in the main asteroid belt.

Ring World Highlights  

Hear about what we know about Titan topics that were investigated early in Cassini’s mission. Learn what questions have baffled and perplexed Cassini scientists for a long while (cough cough cryovo...

This movie shows a quick succession of multiple products of Titan's surface from the Cassini orbiter and the European Space Agency's Huygens probe.

The most prominent jets of vapor and icy particles emerging from the south polar terrain of Saturn’s moon Enceladus are shown here in graphical form in a movie clip of a “rotating” Enceladus.

The Usual Suspects: Science research is like detective work. One scientist takes his case to California's Death Valley, to search for clues surrounding a Titan lake.

NASA's Director of Planetary Science, Jim Green, discusses the Jan. 20 Astronomical Journal science paper that points to the possibility of a new "Planet 9" in our solar system beyond Pluto.

Mark Hofstadter describes the lure of science -- of discovering something new -- and his path to becoming a planetary scientist.

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.

Six years of exploration through the 'eyes' of the Mars Exploration Rover Spirit.