A New Look at 'Ocean Worlds': James Webb Space Telescope Will Target Europa and Enceladus

An example of possible spectroscopy results from one of Europa’s water vapor plumes. Image Credit: NASA-GSFC/SVS/Hubble Space Telescope/Stefanie Milam/Geronimo Villanueva

NASA’s upcoming James Webb Space Telescope (JWST) will be used to study two of the most fascinating moons in our Solar System – Europa and Enceladus, also known as “ocean worlds” since both have […]

Grand Final Part 4: Cassini Completes Eighth Ring Crossing, and a 'Tour of Saturn's Moons'

A haunting raw image view of Saturn and its rings taken on June 7, 2017 by Cassini. Photo Credit: NASA/JPL-Caltech/Space Science Institute

As Cassini’s “Grand Finale” journey continues, the spacecraft has completed its eighth dive past the innermost rings of Saturn (known as a ring crossing), and there are now just under 100 days […]

Grand Finale Part 2: Cassini Completes Second Epic Dive into Saturn's Rings

Illustration of Cassini crossing the ring plane between Saturn and its innermost rings .Cassini has now completed its second dive into the rings of Saturn, with 20 left to go during the Grand Finale. Image Credit: NASA/JPL-Caltech

Cassini’s “dance” with Saturn’s rings continues – the probe has now completed its second dive into the […]

Cassini Sends Back Spectacular New Images From First-Ever Dive Between Saturn and its Rings

Three of the new raw images taken during Cassini’s first dive between Saturn and its innermost rings. Image Credit: NASA/JPL-Caltech/Space Science Institute

After waiting with bated breath last night, everyone following Cassini’s first-ever dive through the gap between Saturn and its rings let out a collective sigh of relief – the spacecraft made it! […]

Cassini Enters 'Grand Finale' Phase of Mission and Solves a 'Bubbling Mystery' on Titan's Seas

Artist’s conception of Cassini’s final flyby of Titan on April 21. Image Credit: NASA/JPL-Caltech

This week marks another important milestone in the Cassini mission at Saturn – as of today, the spacecraft is conducting the last Ring-Grazing Orbit of its mission as it prepares for the Grand Finale, which will culminate in the death […]

Nearing the End: Cassini Prepares for Spectacular 'Grand Finale' Orbits at Saturn

Cassini is now entering the Grand Finale phase of the mission, which will end on Sept. 15, 2017, after the spacecraft plunges between the planet and rings 22 times. Image Credit: NASA/JPL-Caltech

NASA’s Cassini mission to Saturn has been one of the most successful and awe-inspiring ever, studying the giant ringed planet and its […]

Cassini Returns Stunning New Close-Up Images of Saturn's 'Ravioli' Moon and Rings

New image of Saturn’s tiny moon Pan, which orbits inside the Encke Gap of Saturn’s rings. A thin “skirt” or ridge of material surrounds the moon’s equator, giving it a “ravioli” or “dumpling” appearance. Photo Credit: NASA/JPL-Caltech/Space Science Institute/Ian Regan

NASA’s Cassini mission may be entering its last several months now, but that doesn’t […]

A Very Alien Moon: NASA Celebrates 12th Anniversary of Huygens Landing on Titan

Mosaic of images taken by Huygens during its descent to the surface of Titan, from an altitude of about 6 miles (10 kilometers). Riverbeds formed by liquid methane can be seen near the center of the image. Image Credit: ESA/NASA/JPL/University of Arizona

Twelve years ago today, one of the most incredible space missions ever […]

Ancient Water World: Tectonics on Pluto's Moon Charon Point to Frozen Subsurface Ocean

Charon (upper left) and Pluto as seen by New Horizons on July 14, 2015. Photo Credit: NASA/JHUAPL/SwRI

Charon is Pluto’s largest moon and, despite being so cold and remote from the Sun, has been revealed to be a fascinating and active world, just like Pluto itself. Residing in the far outskirts of the Solar […]

Cassini Sends Back Spectacular New Images from First Ring-Grazing Orbit at Saturn

Saturn’s northern hemisphere up close: new image taken by Cassini on Dec. 3, 2016, showing small details in the turbulent atmosphere, including one corner of the “hexagon” with central cyclone. It was taken at a distance of about 240,000 miles (390,000 kilometers) from Saturn. Photo Credit: NASA/JPL-Caltech/Space Science Institute

The Cassini spacecraft has successfully […]