Titan Lithograph

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...

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

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...

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...

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...

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.​ 

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

Join the journey as NASA’s Psyche mission team launches in 2022 to explore a unique metallic asteroid orbiting the sun between Mars and Jupiter.

May 2022 skywatching highlights: Morning planets, a total lunar eclipse, and the second-closest open star cluster, which hangs out near the lion's tail.

Listen closely to new sounds from Mars recorded by NASA’s Perseverance Mars rover.

April 2022 skywatching highlights: Two planetary pairings make April mornings special – Mars and Saturn, and Venus and Jupiter. Plus a special "double star" to look for in the Big Dipper.

Following critical mirror alignment steps, the Web team is confident the observatory will meet or exceed its science goals.

Celebrate Women's History Month with us as we pay tribute to scientists, engineers, astronauts, and leaders who continue to pave the way for future generations of explorers.

NASA’s Psyche mission is preparing for a 1.5 billion-mile (2.4 billion-kilometer) trip to a metal-rich asteroid with the same name.

March 2022 skywatching highlights: Saturn with Venus and Mars in the a.m., the Hyades star cluster, and stars with known exoplanets that you can find without a telescope.

A ground-based image of the total solar eclipse on Aug. 21, 2017 (gray, middle ring), is superimposed over an image of the Sun’s atmosphere, called the corona (red, outermost ring), as seen by ESA ...

The United States was in a prime orbital position and time of day to view the eclipse on April 15, 2014.

The Moon pictured during a lunar eclipse is seen from the International Space Station during a northwest to southeast orbital trek 263 miles above the Pacific Ocean.

A perigee full moon, or supermoon, is seen behind the Washington Monument during a total lunar eclipse on Sunday, September 27, 2015, in Washington, DC. The combination of a supermoon and total lun...

The diamond-ring effect occurred at the beginning and end of totality during a total solar eclipse. As the last bits of sunlight pass through the valleys on the moon's limb, and the faint corona ar...

As millions of Americans watched the total solar eclipse that crossed the continental United States Aug. 21, the international Hinode solar observation satellite captured its own images of the awe-...

As millions of people across the United States experienced a total eclipse as the umbra, or moon’s shadow passed over them, only six people witnessed the umbra from space.

When depicting an eclipse path, data visualizers have usually chosen to represent the moon's shadow as an oval. By bringing in a variety of NASA data sets, visualizer Ernie Wright has created a new...