🏳️Solar System Exploration

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The solar system has one star, eight planets, five dwarf planets, at least 290 moons, more than 1.3 million asteroids, and about 3,900 comets.

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### Highlights

[

5 min read

### What’s Up: March 2025 Skywatching Tips from NASA

article2 weeks ago

](https://science.nasa.gov/solar-system/skywatching/whats-up-march-2025-skywatching-tips-from-nasa/)[

3 min read

### 40 Years Ago: Space Shuttle Atlantis Makes its Public Debut 

article4 days ago

](https://www.nasa.gov/history/40-years-ago-space-shuttle-atlantis-makes-its-public-debut/)[

6 min read

### NASA’s Webb Peers Deeper into Mysterious Flame Nebula

article4 days ago

](https://science.nasa.gov/missions/webb/nasas-webb-peers-deeper-into-mysterious-flame-nebula/)

Back

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[

### Missions

](https://science.nasa.gov/nasa-missions/)

*   [Search All NASA Missions](https://www.nasa.gov/missions/)

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[

### Humans in Space

](https://science.nasa.gov/humans-in-space/)

*   [Why Go to Space](https://www.nasa.gov/humans-in-space/why-go-to-space/)

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[

### Earth

](https://science.nasa.gov/earth/)

*   [Explore Earth Science](https://science.nasa.gov/earth/explore/)

*   [Climate Change](https://science.nasa.gov/climate-change/)

*   [Earth, Our Planet](https://science.nasa.gov/earth/facts/)

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[

### The Solar System

](https://science.nasa.gov/solar-system/)

*   [The Sun](https://science.nasa.gov/sun/)

*   [Mercury](https://science.nasa.gov/mercury/)

*   [Venus](https://science.nasa.gov/venus/)

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*   [The Kuiper Belt](https://science.nasa.gov/solar-system/kuiper-belt/)

*   [The Oort Cloud](https://science.nasa.gov/solar-system/oort-cloud/)

*   [Skywatching](https://science.nasa.gov/skywatching/)

[

### The Universe

](https://science.nasa.gov/universe/)

*   [Exoplanets](https://science.nasa.gov/exoplanets/)

*   [The Search for Life in the Universe](https://science.nasa.gov/universe/search-for-life/)

*   [Stars](https://science.nasa.gov/universe/stars/)

*   [Galaxies](https://science.nasa.gov/universe/galaxies/)

*   [Black Holes](https://science.nasa.gov/universe/black-holes/)

*   [The Big Bang](https://science.nasa.gov/universe/the-big-bang/)

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*   [Dark Energy](https://science.nasa.gov/dark-energy/)

[

### Science

](https://science.nasa.gov/)

*   [Earth Science](https://science.nasa.gov/earth-science/)

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[

### Aeronautics

](https://science.nasa.gov/aeronautics/)

*   [Science in the Air](https://www.nasa.gov/aeronautics/science-in-the-air/)

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[

### Technology

](https://science.nasa.gov/technology/)

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### About NASA

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[

### NASA en Español

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*   [Universo](https://ciencia.nasa.gov/universo)

[

### News & Events

](https://science.nasa.gov/news/)

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### Multimedia

](https://science.nasa.gov/multimedia/)

*   [Images](https://www.nasa.gov/images/)

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### Highlights

[

6 min read

### What You Need to Know about NASA’s SpaceX Crew-10 Mission

article 1 week ago

](https://www.nasa.gov/missions/station/what-you-need-to-know-about-nasas-spacex-crew-10-mission/)[

2 min read

### Hubble Spies a Spiral in the Water Snake

article 1 week ago

](https://science.nasa.gov/missions/hubble/hubble-spies-a-spiral-in-the-water-snake/)[

4 min read

### Discovery Alert: ‘Super-Earth’ Swings from Super-Heated to Super-Chill

article 3 days ago

](https://science.nasa.gov/universe/exoplanets/discovery-alert-super-earth-swings-from-super-heated-to-super-chill/)

### Highlights

[

2 min read

### ASR

article 7 days ago

](https://www.nasa.gov/johnson/jsc-procurement/asr/)[

8 min read

### Ahead of Crew Return, NASA’s Crew-9 Concludes Science Mission

article 1 week ago

](https://www.nasa.gov/missions/station/iss-research/nasas-spacex-crew-9-scientific-mission-on-space-station-concludes/)[

2 min read

### NASA Invites You to Share Excitement of Agency’s SpaceX Crew-10 Launch

article 1 week ago

](https://www.nasa.gov/get-involved/virtual-guest-program/nasa-invites-you-to-share-excitement-of-agencys-spacex-crew-10-launch/)

### Highlights

[

6 min read

### NASA Data Supports Everglades Restoration

article 3 hours ago

](https://science.nasa.gov/earth/nasa-data-supports-everglades-restoration/)[

8 min read

### NASA Researchers Study Coastal Wetlands, Champions of Carbon Capture

article 1 day ago

](https://science.nasa.gov/earth/nasa-researchers-study-coastal-wetlands-champions-of-carbon-capture/)[

3 min read

### NASA Analysis Shows Unexpected Amount of Sea Level Rise in 2024

article 1 day ago

](https://www.nasa.gov/missions/jason-cs-sentinel-6/sentinel-6-michael-freilich/nasa-analysis-shows-unexpected-amount-of-sea-level-rise-in-2024/)

### Highlights

[

5 min read

### NASA’s Record-Shattering, Theory-Breaking MMS Mission Turns 10

article 2 days ago

](https://science.nasa.gov/science-research/heliophysics/mms-mission-turns-10/)[

2 min read

### How Do We Know the Earth Isn’t Flat? We Asked a NASA Expert: Episode 53

article 3 days ago

](https://www.nasa.gov/earth/how-do-we-know-the-earth-isnt-flat-we-asked-a-nasa-expert-episode-53/)[

6 min read

### Cosmic Mapmaker: NASA’s SPHEREx Space Telescope Ready to Launch

article 7 days ago

](https://www.nasa.gov/missions/spherex/cosmic-mapmaker-nasas-spherex-space-telescope-ready-to-launch/)

### Highlights

[

2 min read

### Hubble Sees a Spiral and a Star

article 7 hours ago

](https://science.nasa.gov/missions/hubble/hubble-sees-a-spiral-and-a-star/)[

4 min read

### Discovery Alert: ‘Super-Earth’ Swings from Super-Heated to Super-Chill

article 3 days ago

](https://science.nasa.gov/universe/exoplanets/discovery-alert-super-earth-swings-from-super-heated-to-super-chill/)[

6 min read

### Team Preps to Study Dark Energy via Exploding Stars With NASA’s Roman

article 3 days ago

](https://www.nasa.gov/missions/roman-space-telescope/team-preps-to-study-dark-energy-via-exploding-stars-with-nasas-roman/)

### Highlights

[

2 min read

### Hubble Sees a Spiral and a Star

article 7 hours ago

](https://science.nasa.gov/missions/hubble/hubble-sees-a-spiral-and-a-star/)[

3 min read

### NASA Analysis Shows Unexpected Amount of Sea Level Rise in 2024

article 1 day ago

](https://www.nasa.gov/missions/jason-cs-sentinel-6/sentinel-6-michael-freilich/nasa-analysis-shows-unexpected-amount-of-sea-level-rise-in-2024/)[

5 min read

### NASA’s Record-Shattering, Theory-Breaking MMS Mission Turns 10

article 2 days ago

](https://science.nasa.gov/science-research/heliophysics/mms-mission-turns-10/)

### Highlights

[

3 min read

### Finalists Selected in NASA Aeronautics Agriculture-Themed Competition 

article 1 min ago

](https://www.nasa.gov/aeronautics/agriculture-comp-finalists/)[

5 min read

### NASA’s Chevron Technology Quiets the Skies

article 3 days ago

](https://www.nasa.gov/centers-and-facilities/glenn/nasas-chevron-technology-quiets-the-skies/)[

3 min read

### NASA Selects Three University Teams to Participate in Flight Research 

article 3 days ago

](https://www.nasa.gov/directorates/armd/tacp/ui/uli/2025-university-teams/)

### Highlights

[

4 min read

### NASA Cameras on Blue Ghost Capture First-of-its-Kind Moon Landing Footage

article 1 day ago

](https://www.nasa.gov/general/nasa-cameras-on-blue-ghost-capture-first-of-its-kind-moon-landing-footage/)[

2 min read

### NASA Continues BioNutrients Space-Fermented Food Research

article 3 days ago

](https://www.nasa.gov/general/nasa-continues-bionutrients-space-fermented-food-research/)[

2 min read

### What is a NASA Spinoff? We Asked a NASA Expert: Episode 53

article 1 week ago

](https://www.nasa.gov/directorates/stmd/what-is-a-nasa-spinoff-we-asked-a-nasa-expert-episode-53/)

### Highlights

[

3 min read

### NASA Selects Three University Teams to Participate in Flight Research 

article 3 days ago

](https://www.nasa.gov/directorates/armd/tacp/ui/uli/2025-university-teams/)[

2 min read

### 2025 Aviation Weather Mission: Civil Air Patrol Cadets Help Scientists Study the Atmosphere with GLOBE Clouds

article 1 week ago

](https://science.nasa.gov/learning-resources/science-activation/2025-aviation-weather-mission-civil-air-patrol-cadets-help-scientists-study-the-atmosphere-with-globe-clouds/)[

3 min read

### University High Knows the Answers at NASA JPL Regional Science Bowl

article 2 weeks ago

](https://www.nasa.gov/centers-and-facilities/jpl/university-high-knows-the-answers-at-nasa-jpl-regional-science-bowl/)

### Highlights

[

2 min read

### NASA Invites You to Share Excitement of Agency’s SpaceX Crew-10 Launch

article 1 week ago

](https://www.nasa.gov/get-involved/virtual-guest-program/nasa-invites-you-to-share-excitement-of-agencys-spacex-crew-10-launch/)[

5 min read

### NASA’s Chevron Technology Quiets the Skies

article 3 days ago

](https://www.nasa.gov/centers-and-facilities/glenn/nasas-chevron-technology-quiets-the-skies/)[

6 min read

### Team Preps to Study Dark Energy via Exploding Stars With NASA’s Roman

article 3 days ago

](https://www.nasa.gov/missions/roman-space-telescope/team-preps-to-study-dark-energy-via-exploding-stars-with-nasas-roman/)

### Highlights

[

4 min read

### El X-59 de la NASA completa las pruebas electromagnéticas

article 2 days ago

](https://www.nasa.gov/es/el-x-59-de-la-nasa-completa-las-pruebas-electromagneticas/)[

1 min read

### Mejores imágenes de Ciencia en la estación espacial 2024

article 3 weeks ago

](https://www.nasa.gov/feature/mejores-imagenes-de-ciencia-en-la-estacion-espacial-2024/)[

11 min read

### La NASA identifica causa de pérdida de material del escudo térmico de Orion de Artemis I

article 3 months ago

](https://www.nasa.gov/es/la-nasa-identifica-causa-de-perdida-de-material-del-escudo-termico-de-orion-de-artemis-i/)

Explore This Section

Solar System Exploration

========================

Join us as we explore our solar system.

08

#### Planets

05

#### Dwarf Planets

10 THINGS about our solar system

--------------------------------

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 7\. Diverse Atmospheres

](https://science.nasa.gov/solar-system/solar-system-facts/)

Our solar system has many worlds with many types of atmospheres.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 8\. Ring Worlds

](https://science.nasa.gov/solar-system/solar-system-facts/)

The four giant planets – and at least one asteroid – have rings.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 9\. Getting Out There

](https://science.nasa.gov/solar-system/solar-system-facts/)

More than 300 robotic spacecraft have left Earth's orbit, and 24 U.S. astronauts have traveled to the Moon.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 10\. Life as We Know It

](https://science.nasa.gov/solar-system/solar-system-facts/)

So far, Earth is the only place we've found life in our solar system.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 1\. Many Worlds

](https://science.nasa.gov/solar-system/solar-system-facts/)

Our solar system has eight planets, and five dwarf planets.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 2\. Small Worlds, Too

](https://science.nasa.gov/solar-system/solar-system-facts/)

About 1.4 million asteroids, and about 4,000 comets are in our solar system.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 3\. Lots of Moons

](https://science.nasa.gov/solar-system/solar-system-facts/)

Our solar system has more than 300 planetary moons.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 4\. Meet Me in the Milky Way

](https://science.nasa.gov/solar-system/solar-system-facts/)

Our solar system is in one of the Milky Way galaxy’s spiral arms called the Orion Spur.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 5\. A Long Way Around

](https://science.nasa.gov/solar-system/solar-system-facts/)

Our solar system takes about 230 million years to orbit the galactic center.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 6\. Spiraling Through Space

](https://science.nasa.gov/solar-system/solar-system-facts/)

The Milky Way is a barred spiral galaxy.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 7\. Diverse Atmospheres

](https://science.nasa.gov/solar-system/solar-system-facts/)

Our solar system has many worlds with many types of atmospheres.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 8\. Ring Worlds

](https://science.nasa.gov/solar-system/solar-system-facts/)

The four giant planets – and at least one asteroid – have rings.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 9\. Getting Out There

](https://science.nasa.gov/solar-system/solar-system-facts/)

More than 300 robotic spacecraft have left Earth's orbit, and 24 U.S. astronauts have traveled to the Moon.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 10\. Life as We Know It

](https://science.nasa.gov/solar-system/solar-system-facts/)

So far, Earth is the only place we've found life in our solar system.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 1\. Many Worlds

](https://science.nasa.gov/solar-system/solar-system-facts/)

Our solar system has eight planets, and five dwarf planets.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 2\. Small Worlds, Too

](https://science.nasa.gov/solar-system/solar-system-facts/)

About 1.4 million asteroids, and about 4,000 comets are in our solar system.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 3\. Lots of Moons

](https://science.nasa.gov/solar-system/solar-system-facts/)

Our solar system has more than 300 planetary moons.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 4\. Meet Me in the Milky Way

](https://science.nasa.gov/solar-system/solar-system-facts/)

Our solar system is in one of the Milky Way galaxy’s spiral arms called the Orion Spur.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 5\. A Long Way Around

](https://science.nasa.gov/solar-system/solar-system-facts/)

Our solar system takes about 230 million years to orbit the galactic center.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 6\. Spiraling Through Space

](https://science.nasa.gov/solar-system/solar-system-facts/)

The Milky Way is a barred spiral galaxy.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 7\. Diverse Atmospheres

](https://science.nasa.gov/solar-system/solar-system-facts/)

Our solar system has many worlds with many types of atmospheres.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 8\. Ring Worlds

](https://science.nasa.gov/solar-system/solar-system-facts/)

The four giant planets – and at least one asteroid – have rings.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 9\. Getting Out There

](https://science.nasa.gov/solar-system/solar-system-facts/)

More than 300 robotic spacecraft have left Earth's orbit, and 24 U.S. astronauts have traveled to the Moon.

[

](https://science.nasa.gov/solar-system/solar-system-facts/)

[

### 10\. Life as We Know It

](https://science.nasa.gov/solar-system/solar-system-facts/)

So far, Earth is the only place we've found life in our solar system.

Latest News

-----------

[More NASA News](https://www.nasa.gov/news/all-news/)

[

Article

3 Min Read

Embracing the Equinox

](https://science.nasa.gov/solar-system/skywatching/night-sky-network/embracing-the-equinox/)

[Article

3 Min Read

Finalists Selected in NASA Aeronautics Agriculture-Themed Competition](https://www.nasa.gov/aeronautics/agriculture-comp-finalists/) 

[

4 Min Read

NASA Atmospheric Wave-Studying Mission Releases Data from First 3,000 Orbits

Article

](https://science.nasa.gov/science-research/heliophysics/nasa-awe-first-data/)[

5 Min Read

Meet the Johnson CLPS Team Supporting NASA’s Lunar Exploration Goals

Article

](https://www.nasa.gov/centers-and-facilities/johnson/meet-the-johnson-clps-team-supporting-nasas-lunar-exploration-goals/)[

1 Min Read

Blood Moon Lunar Eclipse

Image Article

](https://www.nasa.gov/image-article/blood-moon-lunar-eclipse/)

*   Solar System Facts

*   Planets

*   Moons

Solar System Facts

------------------

Our solar system includes the Sun, eight planets, five officially named dwarf planets, hundreds of moons, and thousands of asteroids and comets.

[Get the Facts](https://science.nasa.gov/solar-system/solar-system-facts/)

An artist's concept of our solar system.

NASA

About the Planets

-----------------

Learn about the inner planets, the outer planets, and the dwarf planets.

[Explore the Planets](https://science.nasa.gov/solar-system/planets/)

The eight planets and dwarf planet Pluto.

NASA

Moons in Our Solar System

-------------------------

Our solar system has hundreds of moons, and they come in many shapes and sizes.

[Explore Moons](https://science.nasa.gov/solar-system/moons/)

Hyperion is the largest of Saturn's irregularly shaped moons.

NASA/JPL-Caltech/Space Science Institute

Skywatching Tips

----------------

*   ### What’s Up

    Which planets are visible and when to see them.

    [Explore](https://science.nasa.gov/solar-system/skywatching/whats-up-march-2025-skywatching-tips-from-nasa/)

*   ### Detailed Daily Guide

    Learn about the next full moon, and other skywatching events.

    [Get the Guide](https://science.nasa.gov/skywatching/nasa-daily-skywatching-guide/?exclude_child_pages=false&order=DESC&orderby=date&layout=list&number_of_items=3&requesting_id=145941&science_only=false&show_content_type_tags=yes&show_excerpts=yes&show_pagination=true&show_readtime=yes&show_thumbnails=yes&response_format=html&listing_page=yes&listing_page_category_id=1985&post_types=post&categories=1985&internal_terms=5020)

*   ### Skywatching Hub

    Get tips for photographing the Moon, guides, activities, and videos for skywatchers.

    [Explore More](https://science.nasa.gov/skywatching/)

*   ### What are Auroras?

    What causes auroras? When and where can you seem them?

    [Explore](https://science.nasa.gov/sun/auroras/)

*   ### Meteor Showers

    When's the next meteor shower, and how many meteors can you expect to see?

    [Explore](https://science.nasa.gov/meteor-showers/)

How To...

---------

Explore NASA's tips and guides for observing and photographing the sky.

[Skywatching Hub](https://science.nasa.gov/skywatching/)

### Photograph the Moon

Capturing the Moon with a camera is satisfying and challenging.

[Read More](https://science.nasa.gov/solar-system/moon/how-to-photograph-the-moon/)

### Use Binoculars for Skywatching

Binoculars are an excellent first "telescope" for skywatching.

[Read More](https://science.nasa.gov/solar-system/skywatching/night-sky-network/binoculars-a-great-first-telescope/)

### Photograph a Meteor Shower

Follow these tips to be rewarded with a great photo of meteors.

[Read More](https://science.nasa.gov/solar-system/how-to-photograph-a-meteor-shower/)

### Find Good Places to Stargaze

We've got you covered. We'll help you find a great spot.

[Read More](https://science.nasa.gov/solar-system/skywatching/how-to-find-good-places-to-stargaze/)

Eyes on the Solar System: A real-time visualization of our solar system using planetary science data.

NASA/JPL-Caltech

Featured Missions

-----------------

### Europa Clipper

Europa Clipper launched Oct. 14, 2024, to conduct a detailed investigation of Jupiter's moon Europa.

[Read More](https://science.nasa.gov/mission/europa-clipper/)

### Psyche

In August 2029, Psyche will arrive at a metal-rich asteroid with the same name.

[Read More](https://science.nasa.gov/mission/psyche/)

### NEO Surveyor

NEO Surveyor will hunt asteroids and comets that are potential hazards to Earth. Launch is no earlier than September 2027.

[Read More](https://science.nasa.gov/mission/neo-surveyor/)

### VERITAS

VERITAS and DAVINCI will be the first NASA spacecraft to explore Venus since the 1990s. VERITAS will launch no earlier than 2031.

[Read More](https://science.nasa.gov/mission/veritas/)

Features

--------

### 10 Things to Know About the Kuiper Belt

[Read More](https://science.nasa.gov/solar-system/kuiper-belt/10-things-to-know-about-the-kuiper-belt/)

### Citizen Science: Choose a Project, Do Science With NASA

[Read More](https://science.nasa.gov/citizen-science/)

### What's That Space Rock?

[Read More](https://science.nasa.gov/solar-system/10-things-whats-that-space-rock/)

### 10 Things: Our Solar System’s Most Marvelous Moons

[Read More](https://science.nasa.gov/solar-system/moons/10-things-about-our-solar-systems-most-marvelous-moons/)

Resources

---------

Explore curated collections of resources, including activities that can be done at home, as well as videos, animations, handouts, and online interactives. 

### Asteroids and Comets

[Explore](https://science.nasa.gov/solar-system/resources/resource-packages/asteroid-and-comet-resources/)

### Lucy Mission

[Explore](https://science.nasa.gov/solar-system/resources/resource-packages/lucy-mission-resources/)

### OSIRIS-REx

[Explore](https://science.nasa.gov/solar-system/resources/resource-packages/osiris-rex-resources/)

### Ocean Worlds

[Explore](https://science.nasa.gov/solar-system/resources/resource-packages/ocean-worlds-resources/)

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Keep Exploring

Discover More Topics

--------------------

[

Planets

](https://science.nasa.gov/solar-system/planets/)[

Moons

](https://science.nasa.gov/solar-system/moons/)[

Asteroids, Comets & Meteors

](https://science.nasa.gov/asteroids-comets-meteors/)[

Oort Cloud

](https://science.nasa.gov/solar-system/oort-cloud/)