Solar System Exploration
September 17, 2004
NASA's Cassini spacecraft made its final approach to Saturn and dove into the planet’s atmosphere on Friday, Sept. 15, 2017 but the science provided by this enduring spacecraft will live on.
Cassini: Mission of Exploration
Annette and Alden Tombaugh, the children of Clyde Tombaugh, remember their father and his discovery of Pluto.
Video: Reflections on Clyde Tombaugh
This video describes a computer model that proposes a flow vortex in Saturn's upper atmosphere or ionosphere can explain periodic signatures observed by NASA's Cassini spacecraft in Saturn's magnet...
Diagnosing Saturn's Magnetic Pulse ... and the Beat Goes On
NASA's Dawn is the first spacecraft to orbit two extraterrestrial targets.
Using Ion Propulsion to Explore New Worlds
Explore the process that Johannes Kepler undertook when he formulated his three laws of planetary motion.
Orbits and Kepler's Laws
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
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
The Cassini spacecraft arrived at Saturn in June 2004 and is now halfway through its mission. A new photo essay showcases some stunning images returned by the mission.
Photo Essay: Two Years at Saturn
This movie, built with data collected during the European Space Agency's Huygens probe on Jan. 14, 2005, shows the operation of the Descent Imager/Spectral Radiometer camera during its descent and ...
Titan Descent Data Movie with Bells and Whistles
Filters, pixels and math star in this narrated cartoon.
How Does a Spacecraft Take a Picture?
This video takes viewers on a virtual tour of Vesta's south polar basin, the 'snowman' set of craters and a crater called Oppia.
Touring Vesta's Craters
Thomas Valdez tells how his early penchant for tinkering with things followed a path that led him to a career as a research engineer
Through the Eyes of Scientists - Meet Thomas Valdez
Trouble pronouncing Rosetta and Philae's target comet? We called in some expert help.
They called it CG
This animation shows "beacons" of hot air seen in the infrared that appeared during a great springtime storm on Saturn from January 2011 to March 2012.
Infrared Hotspots in a Monster Saturn Storm
At the end of the last Apollo 15 moon walk, Commander David Scott (pictured above) performed a live demonstration for the television cameras.
The Apollo 15 Hammer-Feather Drop
As Titan Turns
As Titan Turns
A simplified model of Jupiter's massive magnetic field, known as a magnetosphere.
Jupiter's Magnetic Field Visualization
This artist's concept shows "tides" on Titan raised by Saturn's gravity, as detected by NASA's Cassini spacecraft.
Squeezing and Stretching Titan
This movie created from images obtained by NASA’s Cassini spacecraft shows a propeller-shaped structure created by a hidden, embedded moon moving through one of Saturn's rings.
Propeller Churns the A Ring
Rosaly Lopes shares how she was inspired to help the exploration of space and how that lead to her role as a planetary scientist.
Through the Eyes of Scientists - Meet Rosaly Lopes
Flight across Titan
Flight across Titan
Where is the edge of the solar system? The answer is not so simple.
Where is the Edge of the Solar System?
NASA's Dawn spacecraft flys over dwarf planet Ceres which Dawn has been orbiting for mre than a year, providing us with fascinating views of an alien world.
Unveiling Ceres (Animation)
This movie captured by NASA'S Cassini spacecraft shows a south polar vortex, or a swirling mass of gas around the pole in the atmosphere, at Saturn’s moon Titan.
Titan's South Polar Vortex in Motion
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Celebrate Mars Reconnaissance Orbiter's Views From Above
The spacecraft is on track to touch asteroid Bennu's surface during its first sample collection attempt on Oct. 20.
Rehearsal Puts NASA's OSIRIS-REx on a Path to Sample Collection
NASA's Mars Odyssey spacecraft has captured these six infrared views of the Martian moon Phobos.
A Japanese resupply ship will depart next week after nearly three months attached to the space station.
Japanese Resupply Ship to Depart Space Station
On July 4, NASA’s Transiting Exoplanet Survey Satellite (TESS) finished its primary mission.
NASA's Planet Hunter Completes Its Primary Mission