Titan Lithograph

On July 19, 2013, in an event celebrated the world over, NASA’s Cassini spacecraft slipped into Saturn’s shadow and turned to image the planet, seven of its moons, its rings — and, in the backgroun...

On October 15, 1997, the Cassini–Huygens spacecraft was launched on an almost 7-year journey to the Saturn system. On its way, Cassini– Huygens passes Venus (twice), Earth, and Jupiter — arriving a...

Learn about ocean worlds and their potential for harboring life in this handout.

Enceladus (pronounced en-SELL-ah-dus) is an icy moon of Saturn with remarkable activity near its south pole. Covered in water ice that reflects sunlight like freshly fallen snow, Enceladus reflects...

The Cassini–Huygens spacecraft was launched from Cape Canaveral Air Station in Florida at 4:43 a.m. Eastern Daylight Time (1:43 a.m. Pacific Daylight Time) on October 15, 1997, aboard a Titan IVB w...

This free NASA e-Book celebrates Saturn as seen through the eyes of the Cassini spacecraft. 

Launched in 1997 on a nearly seven-year journey, the Cassini–Huygens spacecraft arrives at the ringed planet on July 1, 2004, for a four-year scientific tour of the Saturn system.​ 

Cassini–Huygens is a robotic spacecraft: that means that Cassini– Huygens is controlled by people on Earth.​ 

Because the rockets we now have are not large enough to send a spacecraft as massive as Cassini–Huygens directly to Saturn, and because the spacecraft cannot carry enough fuel to take it directly f...

Saturn, Jupiter, and Mars. Skull Valley, Utah.

​Venus and Jupiter part ways following their March 1 rendezvous, while Ceres reaches opposition, and is worth hunting for using binoculars.

Look for the charioteer constellation, Auriga, along with two easy-to-locate star clusters, M41 and M47. And watch as Jupiter and Venus get close.

This visual reveals how the magnetic field associated with the Psyche spacecraft distorts the ambient magnetic field to be measured.

The Psyche spacecraft includes many unavoidable magnetic field sources, which must be accounted for to measure the magnetic field signature of the Psyche metal-rich asteroid.

A whimsical collection of cosmic candies. Ready to download and share.

Some close approaches by Mars, Jupiter, the Moon, Venus, and Saturn, plus the brilliant winter stars, and a comet you can find with binoculars.

The 2023 phases of the Moon at hourly intervals.

NASA’s SunRISE will send a fleet of six SmallSats into orbit around Earth to work as one radio telescope to investigate radio waves from the Sun.

The Heliophysics Big Year is a NASA-led public engagement campaign designed to promote heliophysics broadly, make heliophysics science and information accessible to all, and showcase ongoing effort...

This fact sheet, available to download in color and grayscale, provides information about eclipses and how to watch this one safely.

The Moon occults Mars, and slips past Jupiter twice, while winged stallion Pegasus looks on.

A total lunar eclipse, Leonid meteors, and the Moon visits Mars, Saturn, and Spica.

Happy Halloween, space explorers. Perhaps you could carve a few moments out of your busy schedule to join me for a haunted hayride to some of the more disturbing destinations of your sinister littl...

OSIRIS-REx returns to Earth in 2023 with its precious sample of asteroid Bennu.

NASA’s Lucy mission is heading to the Jupiter Trojans – but first, it's returning home for an Earth gravity assist.