Possible Titan Volcano

Clara, Sugar Plum Fairy, move aside. Saturn's moons give Tchaikovsky's classic ballet, "The Nutcracker," a graceful new spin in this video compiled from some 61 images taken by the Cassini spacecra...

The history-making Viking 1 mission launched 35 years ago.

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

NASA's twin GRAIL spacecraft have new names, thanks to some enthusiastic 4th graders from Montana, who reveal the names in dramatic fashion.

See all the planets, plus mission updates from comet and asteroid missions Dawn and Rosetta.

Credit: NASA Goddard Space Flight Center

In this movie from NASA's Cassini spacecraft, the gravitational pull of Saturn's moon Prometheus creates patterns in Saturn's F ring.

On Earth, the ocean floor is home to hydrothermal vents that spout hot water, nourishing life in an otherwise inhospitable environment. Scientists think similar vents could exist on other worlds.

Hidden details of our home galaxy — the Milky Way — are revealed in different wavelengths. 

This audio clip was created from radio signals received by the radio and plasma wave science instrument on the Cassini spacecraft.

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. 

In August 2012, a long filament of solar material coalesced in the Sun's atmosphere. 

Jupiter Magnetosphere

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.

Eleven years in the life of the Sun, spanning most of solar cycle 23.

Classic video explaining the history, debate and continuing discussion of the definition of a planet.

New science, mined from the archives. Data from NASA's Galileo orbiter launched a generation ago yields new evidence of plumes, eruptions of water vapor, from Jupiter's moon Europa.

Watch the NASA-JPL press briefing announcing Cassini's final orbits recorded at JPL on April 4, 2017.

Cassini mission leads Earl Maize and Linda Spilker talked about the spacecraft's epic journey and science - and the exciting two-part grand finale.

This animation demonstrates how deformation in the icy surface of Europa could transport subsurface ocean water to the moon’s surface.

This animation shows the geocentric phase, libration, position angle of the axis, and apparent diameter of the Moon throughout the year 2019, at hourly intervals. The imagery is based on actual dat...

Explore the process that Johannes Kepler undertook when he formulated his three laws of planetary motion.

This graphic and animation depicts a cross-section of the Saturnian moon Titan.

Atlas Found!

What's Up for August? This month our main focus is the Perseid meteor shower.