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Planets

Two trainees work on repairs.

How to Experience a Mission to Mars (If You Still Want to Come Back)

Space Camp for adults? It’s definitely a thing

Cassini crosses Saturn's F ring once on each of its 20 Ring-Grazing Orbits, shown here in tan and lasting from late November 2016 to April 2017. Blue represents the extended solstice mission orbits, which precede the ring-grazing phase.

Trending Today

In Its Final Hurrah, Cassini Will Swoop Past Saturn’s Rings

The craft will take one last look at the ringed planet before diving into its depths

Mercury's Great Valley is the dark blue stripe across the center of the image.

Life in the Cosmos

Mercury’s Newly-Discovered “Great Valley” Puts Earth’s Grand Canyon to Shame

The vast scar across the tiny planet is remarkable in itself—but it also reveals that Mercury may still be tectonically active

Sputnik Planitia is a 325,000-square-mile, ice-covered basin on Pluto.

How the Pull of an Icy “Heart” Sent Pluto’s Poles Wandering

Using New Horizons data, scientists determine that the erstwhile planet has a more dynamic past than we thought

ALMA Reveals Planets Born Earlier Than We Thought

In 2014, astronomer David Wilmer aimed the ALMA Array at a young star 450 light years away

Two natural color images from NASA's Cassini spacecraft show the changing appearance of Saturn's north polar region between 2012 and 2016.

New Research

The Swirling Storm Above Saturn’s North Pole Changed Colors

The years-long shift may be a sign of changing seasons

Six Places on Earth That Scientists Say Look Like Other Planets

The eerie resemblance these locales have to Mars and beyond has attracted researchers for years

New Research

Uranus May Have Been Hiding Two Moons

Researchers spotted ripples in the planet’s rings, which may be tracks left from two tiny moons

Space Shuttle Atlantis lifts off on NASA's final space shuttle mission from Kennedy Space Center in Cape Canaveral, Florida on July 8, 2011.

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Many of NASA’s Recent Successes Actually Date Back to the Bush Administration

Some leaps, launches and grand plans for the future

The new dwarf planet—too small to join the ranks of our solar system's eight planets—orbits the sun roughly twice as far away as Pluto.

New Research

Say Hello to Our Solar System’s Newest Dwarf Planet

Spotting the dwarf planet could help in the search for Planet Nine

Two 2001 images from the Mars Orbiter Camera on NASA's Mars Global Surveyor orbiter show a dramatic change in the planet's appearance when haze raised by dust-storm activity in the south became globally distributed. The images were taken about a month apart.

New Research

Major Martian Dust Storms Might Soon Envelope the Red Planet

A plus for meteorologists but perhaps bad news for rovers

This composite image shows suspected plumes of water vapor erupting at the 7 o’clock position off of Jupiter’s moon Europa.

New Research

Evidence Stacks Up for Icy Geysers Erupting on Europa

Possible water plumes could give researchers a way to study Jupiter’s moon without drilling

Carmel Johnston (left), crew commander, enjoys her first meal outside the dome.

Space Hub

Astronauts Tell All About Their One Year on “Mars”

In an unprecedented simulation, NASA learned that its astronauts are a bunch of overachievers

The forces that formed Pluto's heart may not be romantic, but the feature was love at first sight for scientists.

New Research

Scientists Finally Figured Out Why Pluto Has That Icy Heart

The dwarf planet’s geography, atmosphere and chemistry helped form its most famous feature

As more countries and companies send spacecraft to other worlds, scientists are worried about potential contamination risks. Here, NASA's Curiosity rover takes a self-portrait on Mars.

Think Big

Can We Save Mars From Ourselves?

When we travel to Earth-like worlds, contamination may be inevitable

Think Curiosity is cool? You ain't seen nothing yet.

Think Big

How the Next Generation of Mars Rovers will Search for Signs of Life

The Mars 2020 rover doesn’t even have a name yet—but it already has an ambitious goal

An artist's impression of Proxima b

New Research

Astronomers Have Discovered an Earth-Sized Exoplanet in Our Cosmic Backyard

But what would potential life look like on this planetary neighbor?

Murray Buttes may look like an earthbound mesa, but there's a difference: It's on Mars.

Cool Finds

Here’s a Panoramic Glimpse of the Curiosity Rover’s Next Destination

Welcome to Murray Buttes. You are now free to rove about the landscape

Grab your sunglasses—all of those far-off stars, black holes and celestial bodies contribute to your killer tan.

New Research

Part of Your Suntan Comes From Photons That Are Billions of Years Old

Thank bodies from beyond the galaxy for a bit of that golden glow

Maria Zuber, first woman to run a NASA spacecraft mission, says she has a "genetic predilection" to explore space.

Life in the Cosmos

This Scientist Seeks Out the Secret History of Other Worlds

Maria Zuber has spent her career enabling discoveries beyond Earth. She says the best is yet to come

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