Solar System Exploration
September 17, 2004
The Cassini mission’s epic 13-year exploration of Saturn is coming to a close. On Sept. 15, the spacecraft will make a planned plunge into the atmosphere of Saturn in order to protect pristine icy ...
A Journey's End
As Titan Turns
As Titan Turns
The six Apollo landing sites are revealed chronologically as the phase and libration of the Moon is shown throughout the Apollo era.
Video: Apollo Landing Sites
Episode 1: What is a dwarf planet?
Space Shorts: What is a Dwarf Planet?
Vesta and Ceres reside in the boundary area of the asteroid belt, where the composition of bodies changes from being almost dry to showing the effects of hydration.
What's Up for July 2011?
Since the 1960’s, scientists have suspected that frozen water could survive in cold, dark craters at the Moon’s poles.
Water on the Moon
This movie, comprised of several detailed images taken by Cassini's radar instrument, shows bodies of liquid near Titan's north pole.
Radar Shows Evidence of Seas
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 shadow of Saturn's moon Tethys seems to disappear as it crosses the planet's rings, demonstrating variations in the density of particles across the rings.
Shadow from the Dark Side
The four changes of the seasons, related to the position of sunlight on the planet, are captured in this view from geosynchronous Earth orbit by EUMETSAT's Meteosat-9 satellite.
Seeing Equinoxes and Solstices from Space
Ranger 9 was the last of the Ranger series of spacecraft launched in the 1960s to explore the moon and was designed to image and impact the moon's crater Alphonsus. This video from 1965 includes im...
Project Scientist Linda Spilker and Mission Planner Molly Bittner answer questions about Cassini's Ring-Grazing orbits during this Jan. 30, 2017 Facebook Live event.
Cassini Facebook Q&A
Take a flight over dwarf planet Ceres in this video made with images from NASA's Dawn spacecraft.
Flight Over Dwarf Planet Ceres
Go, Atlas. Go, Centaur. Go, InSight! NASA's InSight mission launched from Vandenberg Air Force Base for Mars on May 5, 2018—the first interplanetary launch from the West Coast.
InSight Mission to Mars Launch
Sungrazing comets are a special class of comets that come very close to the sun at their nearest approach, a point called perihelion.
What is a Sun-Grazing Comet?
Rotating asteroids have a tough time sticking to their orbits. Their surfaces heat up during the day and cool down at night, giving off radiation that can act as a sort of mini-thruster.
How Sunlight Pushes Asteroids
This animated graphic shows how Saturn and its moon Enceladus are electrically linked.
Saturn and Enceladus Electrical Link
Explore the process that Johannes Kepler undertook when he formulated his three laws of planetary motion.
Orbits and Kepler's Laws
Mark Hofstadter describes the lure of science -- of discovering something new -- and his path to becoming a planetary scientist.
Through the Eyes of Scientists - Meet Mark Hofstadter
Great Dark Spot
Great Dark Spot
Animations, interviews and mission b-roll available for download.
Cassini Video Reels for Download
As millions of people observed the total lunar eclipse on October 8, 2014, MESSENGER was also watching from Mercury.
Lunar Eclipse From Mercury
View this beautiful visualization of the Dawn spacecraft on its journey to the main asteroid belt to Asteroid Vesta and Dwarf Planet Ceres.
This computer-generated animation shows all of Cassini's orbits - affectionaly called the "ball of yarn" by mission planners.
The Ball of Yarn: Cassini's Orbits
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NASA Mission Selects Final Four Site Candidates for Asteroid Sample Return
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