Solar System

An image from Cassini's first dive through the gap between Saturn and its rings in April.

What Cassini's Daring Dives Have Taught Us About Saturn

Before the probe's final plunge into Saturn’s atmosphere, here’s a look back at what we’ve learned so far

This illustration shows NASA's Cassini Spacecraft above Saturn's northern hemisphere.

Celebrate Cassini's Historic Voyage in Eight Incredible Images

After 13 years of exploration, one of NASA's most successful probes will crash into Saturn's atmosphere

Under the Sun's surface is a rapidly rotating core with a temperature of 29 million degrees Fahrenheit

The Sun's Core Spins Roughly Four Times Faster Than Its Surface

Satellite data lets scientists peer into the depths of our star, uncovering hints to its formation

Auroras on Uranus caused by changes in its magnetosphere

Magnetic Field Around Uranus Are a Chaotic Mess

Using data from the Voyager 2 mission, researchers have modeled Uranus's off-kilter magnetosphere

Jupiter Could Be the Solar System's Oldest Resident

The early former may have set up just the right conditions for Earth to take shape

Image on the original Pioneer 10 and 11 plaques

Now You Too Can Own a Piece of Space History

The engraver who inscribed Carl Sagan's and Frank Drake's 1973 message to extraterrestrials is now taking orders

Artist's rendering of what DeeDee may look like

Meet DeeDee, the Solar System's Newest Dwarf Planet (Maybe)

Though the tiny icy orb meets all the criteria, it has yet to receive the official designation

Illustration of the water plumes coming off of Enceledus

NASA Detects Microbe-Friendly Food Spouting From Saturn's Moon Enceladus

The Cassini spacecraft has detected the ingredients for life in sprays from the icy world

Uranus and its aurora

Take a Peek at the Auroras on Uranus

This composite image gives the best view yet of the seventh planet's atmospheric lights and ring

This snapshot shows Jupiter's swirling, banded atmosphere and signature vortices.

Hubble Snags Splendid Snapshot of Jupiter

The perfect photographic conditions make for a grand view of the gas giant

What a ring around Mars may have looked like

Mars May Have Had a Ring in the Past and Could Have One in the Future

The red planet's moon may have broken apart into a ring of debris and reformed several times over the planet's history

The little moon has drawn comparisons to ravioli, empanadas, and hamburger.

One of Saturn's Moons is Making Astronomers Hungry

New images of the tiny moon are drawing comparisons to a ravioli, empanadas, walnuts, hamburgers...nom, nom, nom

Pluto and its moon Charon

New Definition Would Make the Moon and Pluto Planets

A suggested update to the International Astronomical Union criteria would add over 100 planets to the solar system

What thorny ethical issues await us once we make it to Mars? A composite image of the red planet, composed by processing about 1000 Viking Orbiter red- and violet-filter images have been to provide global color coverage at a scale of 1 km/pixel.

When Humans Begin Colonizing Other Planets, Who Should Be in Charge?

The biggest threat humans pose to other worlds is what we don’t know—or what we think we know, but don’t

Watch the moon from this moonscape in Craters of the Moon State Park, Idaho.

Fifteen Perfect Spots to Watch the Total Solar Eclipse as it Crosses the U.S. This Summer

One of the most exciting astronomical event in U.S. history is happening in August

Ancient Asteroid Collision Is Still Raining Space Rocks Down on Earth

A new study shows that today's meteorites considerably differ from those of the ancient past

The bow-shaped wave on Venus

Scientists Spot Massive Wave in Venus' Atmosphere

The 6,200-mile long bow-shaped wrinkle may have been caused by gravity waves

Three of Saturn's moons photographed by the Cassini spacecraft

Earth's Moon Could Be Made From 20 Mini Moons

Our celestial buddy could have formed after multiple impacts—not one giant smash up

This collage of images from NASA's Cassini spacecraft shows Saturn's northern hemisphere and rings as viewed with four different spectral filters. Each filter is sensitive to different wavelengths of light and reveals clouds and hazes at different altitudes.

Check Out New Pictures of Saturn From Cassini’s Latest Orbit

New images of the ringed planet herald the spacecraft’s demise

The meteorite sample recovered near Perth in western Australia.

Stargazers Help Track Down a Freshly Fallen Meteorite in Western Australia

A network of cameras and smartphone apps are helping Australian researchers hunt for space rocks

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