Solar System Exploration
April 13, 2016
This free NASA e-Book celebrates Saturn as seen through the eyes of the Cassini spacecraft.
The Saturn System Through the Eyes of Cassini (e-Book)
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...
Cassini-Huygens Launch Lithograph
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...
Cassini-Huygens Spacecraft Lithograph
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...
VVEJGA Trajectory Lithograph
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 Mission to Saturn and 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...
The Day the Earth Smiled 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...
Enceladus, Moon of Saturn Lithograph
Cassini–Huygens is a robotic spacecraft: that means that Cassini– Huygens is controlled by people on Earth.
Spacecraft Components Lithograph
Seeking July 2020 skywatching highlights? Check out giant planets and their moons, Mars rising after midnight and ponder stargazing on the Red Planet.
What's Up: July 2020 [Video]
This newly processed image of Venus revisits original Mariner 10 data with modern image processing software.
Newly-Processed Views of Venus from Mariner 10
Seeking skywatching highlights in June 2020? Look for the Summer Triangle, keep tabs on the morning planets and June 20 brings the solstice.
What's Up: June 2020 [Video]
Known as the "Mother of Hubble," Dr. Nancy Grace Roman was instrumental in taking the Hubble Space Telescope from an idea to reality.
NASA's First Chief Astronomer, the Mother of Hubble
What astronomy highlights can you see in the sky in May 2020? Venus, Sirius and the Milky Way.
What's Up Video: May 2020 Skywatching Tips from NASA
The Seven Sisters meet the evening star, Mars continues its getaway, and unpacking the Moon illusion.
What's Up Video: April 2020 Skywatching Tips from NASA
A curated just-for-kids NASA video playlist.
NASA at Home: Videos for Kids
What's Up for March? Planet-palooza in the morning, a "Sirius" look at the Dog Star, and an evening trio at the end of the month.
What's Up: March 2020 [Video]
Astronomy highlights for February 2020: it's the best time of the year to view Mercury; Mars disappears behind the Moon; and the bright red star on Orion’s shoulder, Betelgeuse, has been acting wei...
What's Up: February 2020 [Video]
Candor Chasma in central Valles Marineris is filled with light-toned layered deposits thought to be sandstones.
Sandstone in West Candor Chasma
A relatively young, ice-filled crater near the north pole of Mars.
The geocentric phase, libration, position angle of the axis, and apparent diameter of the Moon throughout the year 2020.
Moon Phase and Libration, 2020
What's Up for January? Morning meteors, Mars meets its "rival," and the Moon comes around for another visit with Venus.
What's Up: January 2020 [Video]
NASA JPL Software Engineer Melissa Soriano describes the third potential target for Scientist for a Day contestants: Pluto's moon Charon.
NASA Scientist for a Day 2019-2020: Target No. 3 - Charon
NASA Oceanographer Yackar Mauzole describes the first potential target for Scientist for a Day contestants: Uranus' moon Miranda.
NASA Scientist for a Day 2019-2020: Target No. 1 - Miranda
NASA/JPL Science Writer Jay Thompson outlines the challenges in the latest Scientist for a Day essay content.
NASA Scientist for a Day 2019-2020: Introduction
NASA Chemist Sabah Bux describes the second potential target for Scientist for a Day contestants: Neptune's moon Triton.
NASA Scientist for a Day 2019-2020: Target No. 2 - Triton
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The spiral pattern shown by the galaxy in this image from Hubble is striking because of its delicate, feathery nature.
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In the Orion Nebula, an enormous bubble that cleared away star-seeding material is now showing signs of birthing stars.
First Signs of Star Birth Caused by Orion's Wind
This image from NASA’s Juno spacecraft captures several storms in Jupiter’s southern hemisphere.
"Clyde's Spot" on Jupiter
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Data from the LRO spacecraft indicates the Moon’s subsurface might be richer in metal than thought.
Radar Points to Moon Being More Metallic Than Researchers Thought