Science.nasa.gov - SEO Checker

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Overview of the SEO Check
Meta information
94% 
Page quality
91% 
Page structure
64% 
Link structure
23% 
Server
91% 
External factors
100% 
SEO Score
Response time
0.08 s
File size
439.80 kB
Words
1214
Media files
30
Number of links
113 internal / 93 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Mars - NASA Science
The page title is too short. (196 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
Mars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited entirely by robots.
The length of the meta description is perfect. (751 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://science.nasa.gov/mars/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en-us
Server location: United States of America
The following language is defined by HTML: en-us
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
This page is hosted on a subdomain. Use a top level domain for better SEO results.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
No favicon is linked in the HTML code.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1
descriptionMars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited entirely by robots.
keywordscuriosity rover,deimos,exomars,ingenuity helicopter,insight,marco,mars,mars 2020 perseverance,mars climate orbiter,mars exploration program,mer,mars express,mars global surveyor,mars moons,mars observer,odyssey,mom,mars oxygen in situ resource utilization experiment moxie,mars pathfinder,phoenix,mars polar lander deep space 2,mars reconnaissance orbiter,mars sample return,mars science laboratory,mmx,maven,mer opportunity,perseverance rover,phobos,rosalind franklin rover,smd,mer spirit,tech demo missions program,trace gas orbiter,voyager 1,voyager 2,voyager program
searchgov_custom3topic
parsely-titleMars - NASA Science
parsely-linkhttps://science.nasa.gov/mars/
parsely-typepost
parsely-image-urlhttps://science.nasa.gov/wp-content/uploads/2023/04/272_MarsInSight_poster-jpg.webp?w=1024
parsely-pub-date2023-05-31 20:49:01
parsely-sectionmars
parsely-tagsCuriosity (Rover), Deimos, ExoMars, Ingenuity (Helicopter), InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport), MarCO (Mars Cube One), Mars, Mars 2020, Mars Climate Orbiter, Mars Exploration Program, Mars Exploration Rovers (MER), Mars Express, Mars Global Surveyor (MGS), Mars Moons, Mars Observer, Mars Odyssey, Mars Orbiter Mission (MOM), Mars Oxygen In-Situ Resource Utilization Experiment (MOXIE), Mars Pathfinder, Mars Phoenix, Mars Polar Lander / Deep Space 2, Mars Reconnaissance Orbiter (MRO), Mars Sample Return (MSR), Mars Science Laboratory (MSL), Martian Moon Exploration (MMX), MAVEN (Mars Atmosphere and Volatile EvolutioN), Opportunity (Rover), Perseverance (Rover), Phobos, Rosalind Franklin (Rover), Science Mission Directorate, Spirit (Rover), Technology Demonstration Missions Program, Trace Gas Orbiter (TGO), Voyager 1, Voyager 2, Voyager Program
langen-us
twitter:titleMars - NASA Science
twitter:descriptionMars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited entirely by robots.
twitter:imagehttps://science.nasa.gov/wp-content/uploads/2023/04/272_MarsInSight_poster-jpg.webp?w=1024
twitter:cardsummary_large_image
twitter:image:altNew InSight into the Red Planet Poster
twitter:image:width1024
twitter:image:height576
og:titleMars - NASA Science
og:urlhttps://science.nasa.gov/mars/
og:descriptionMars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited entirely by robots.
og:imagehttps://science.nasa.gov/wp-content/uploads/2023/04/272_MarsInSight_poster-jpg.webp?w=1024
og:image:altNew InSight into the Red Planet Poster
og:image:width1024
og:image:height576
charsetutf-8

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Page quality

Content
(Critically important)
This page contains 1214 words. That's ok.
28% of the text are stop words.
The page contains a listing, which indicates a good text layout.
16 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 21.81 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width, initial-scale=1" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 24 tags for this page.
Image SEO
(Somewhat important)
5 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
/_nuxt/nasa-logo_2x.C0A3w2m0.pngNASA Logo
/_nuxt/nasa-logo_2x.C0A3w2m0.pngNASA Logo
...5/esp-020914-0930.jpg?w=4096&format=jpegIntriguing landforms carved into the surface of Mars resemble many-legged spiders.
...tical_limb.jpg?w=4096&format=jpeg&crop=1spacecraft orbiting red planet
...tsharpmars.jpg?w=4096&format=jpeg&crop=1A rover sits on the hilly, orange Martian surface beneath a flat grey sky, surrounded by chunks of rock.
...a26372-web.jpg?w=4096&format=jpeg&crop=1One of the navigation cameras aboard NASA’s Perseverance Mars rover captured this view looking back at the “Bright Angel” area on July 30, the 1,224th Martian day, or sol, of the mission.
...-sky-crane.jpg?w=4096&format=jpeg&crop=1An illustration set against a pale orange sky shows a coaster-shaped spacecraft hovering at the top of the frame, with rockets at four corners firing jets toward the ground. Suspended beneath it on three tethers is a Mars rover, with a light-colored flat bottom, and its six wheels retracted above its belly.
...26344-1600x.gif?w=4096&format=png&crop=1NASA’s Perseverance Mars rover took this selfie, made up of 62 individual images, on July 23. A rock nicknamed “Cheyava Falls,” which has features that may bear on the question of whether the Red Planet was long ago home to microscopic life, is to the left of the rover near the center of the image.
...osignature.jpg?w=4096&format=jpeg&crop=1NASA program scientist Lindsay Hays explains what defines potential signs of ancient life on other worlds and why they require future study. NASA’s Perseverance Mars rover is searching for these signs, collecting samples for future return to Earth, and helping pave the way for human exploration.
...4/03/pia02570orig.webp?w=4096&format=pngA composite image of Earth and Mars was created to allow viewers to gain a better understanding of the relative sizes of the two planets.
...px-cropped.jpg?w=4096&format=jpeg&crop=1No alt attribute provided
...ity-1-jpeg.webp?w=4096&format=png&crop=1Perseverance Selfie with Ingenuity
...1920x640-1.jpg?w=4096&format=jpeg&crop=1Mars rover sitting on the red soil of mars and facing the camera for a selfie
...tration-ci.jpg?w=4096&format=jpeg&crop=1Artist's Concept of MAVEN
...r-pia04916.jpg?w=4096&format=jpeg&crop=1An illustration of a spacecraft over Mars
...r-pia04816.jpg?w=4096&format=jpeg&crop=1A gold-colored spacecraft orbits over Mars, with a dish antenna extending from its top, a spindly boom extending from the front of it toward the viewer, and a large three-paneled solar array attached vertically to its left side. Mars appears as a dusty tan color covering the lower half of the frame, with patches of white at its top, against a black sky flecked with stars in the upper frame.
...9/maven-hero-image.png?w=4096&format=pngGraphic of MAVEN spacecraft with NASA meatball in top left corner and the text "Ten Years at Mars with MAVEN" in yellow letters across the left side of the graphic.
...-beige-spiders-16.jpg?w=4096&format=jpegNo alt attribute provided
...q0jdpwn14jyqxyr95.jpg?w=4096&format=jpegOn a black background, a large orange and white orb is surrounded by a diffuse, grainy, orange halo. The halo appears to have more material on its right side than its left.
...-pia-26373-5000px.jpg?w=4096&format=jpegNo alt attribute provided
.../2016/07/pia14839.jpg?w=4096&format=jpegNo alt attribute provided
...ction-illustration.png?w=4096&format=pngIllustration of an astronaut on Mars, using a remote control drone to inspect a nearby cliff.
...selfie-1920x640-1.jpg?w=4096&format=jpegMars rover sitting on the red soil of mars and facing the camera for a selfie
...20home-1920x640-1.jpg?w=4096&format=jpegNASA’s Perseverance Mars rover took this selfie on July 23, 2024, the 1,218th Martian day, or sol, of the mission. To the left of the rover near the center of the image is the arrowhead-shaped rock nicknamed “Cheyava Falls,” which has features that may bear on the question of whether Mars was home to microscopic life in the distant past. The small dark hole in the rock is where Perseverance took a core sample, which is now in a sample tube stored in the rover’s belly. The white patch to the right of the hole is where the rover used an abrasion tool to clear away the top surface, allowing science instruments to study the rock’s composition.
...te-2000px-cropped.jpg?w=4096&format=jpegNo alt attribute provided
...mars-nasa-gov-jpg.webp?w=4096&format=pngThe bright red-orange surface of Mars as seen from space.
/_nuxt/nasa-logo_2x.C0A3w2m0.pngNASA Logo
Video URLWidthHeight
...ube.com/embed/JH4OxUc8kFs?feature=oembed
...ncient-river-channel-mars-reportorig.mp4

Page structure

H1 heading
(Critically important)
Mars
The H1 heading consists of only one word. There should be more information given.
The H1 heading is too short (4 characters). It should be at least 20 Characters long.
Headings
(Important)
There are 29 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H1 Mars
H2 Mission Status
H2 Featured Topics
H2 Mars Overview
H2 Why Do We Go?
H2 How We Explore
H2 News & Features
H2 Humans to Mars
H2 Discover More Topics From NASA
H2 National Aeronautics and Space Administration
H3 NASA Spacecraft in Orbit
H3 NASA Rovers on the Surface
H3 MAVEN Marks 10 Years at Mars
H3 The Mars Report
H3 Perseverance Begins Long Climb Up Martian Crater Rim
H3 How Curiosity’s Sky Crane Changed the Way NASA Explores Mars
H3 A Fascinating Mars Rock
H3 What is a Potential Biosignature?
H3 Celebrating 10 Years at Mars with NASA’s MAVEN Mission
H3 Mars Relay Network: Interplanetary Internet
H3 Mars Sample Return
H3 Mars Perseverance Rover (Mars 2020)
H3 Mars Curiosity Rover (Mars Science Laboratory)
H3 MAVEN
H3 Mars Reconnaissance Orbiter
H3 Mars Odyssey
H3 Mars Resources
H3 Beyond the Moon
H3 Follow NASA
Some internal link anchor texts are too long.
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
Some anchor texts are used more than once.
6 links don't have an anchor text.
The number of internal links is ok.
There are too many external links (93) on this page.

Found links on this page

LinkAttributesAnchor text
https://science.nasa.gov/mars/Anchor Skip to main content
https://www.nasa.gov/missions/External Subdomain Search All NASA Missions
https://www.nasa.gov/a-to-z-of...External Subdomain A to Z List of Missions
https://www.nasa.gov/events/External Subdomain Upcoming Launches and Landings
https://www.nasa.gov/humans-in...External Subdomain Spaceships and Rockets
https://www.nasa.gov/communica...External Subdomain Communicating with Missions
https://www.nasa.gov/humans-in...External Subdomain Artemis
/mission/webb/Subdomain James Webb Space Telescope
/mission/hubble/Subdomain Hubble Space Telescope
https://www.nasa.gov/internati...External Subdomain International Space Station
/mission/osiris-rex/Subdomain OSIRIS-REx
https://www.nasa.gov/humans-in...External Subdomain Why Go to Space
https://www.nasa.gov/humans-in...External Subdomain Astronauts
https://www.nasa.gov/humans-in...External Subdomain Commercial Space
https://www.nasa.gov/humans-in...External Subdomain Destinations
https://www.nasa.gov/humans-in...External Subdomain Text duplicate Spaceships and Rockets
https://www.nasa.gov/humans-in...External Subdomain Living in Space
/earth/explore/Subdomain Explore Earth Science
/climate-change/Subdomain Climate Change
/earth/facts/Subdomain Earth, Our Planet
/earth/in-action/Subdomain Earth Science in Action
/earth/multimedia/Subdomain Earth Multimedia
/earth/data/Subdomain Earth Data
/earth-science/Subdomain Earth Science Researchers
https://www.nasa.gov/nasa-impa...External Subdomain NASA's Impacts
https://www.nasa.gov/nasa-cent...External Subdomain Centers and Facilities
https://www.nasa.gov/nasa-dire...External Subdomain Directorates
https://www.nasa.gov/nasa-orga...External Subdomain Organizations
https://www.nasa.gov/people-of...External Subdomain People of NASA
https://www.nasa.gov/careers/External Subdomain Careers
https://www.nasa.gov/learning-...External Subdomain Internships
https://www.nasa.gov/history/External Subdomain Our History
https://www.nasa.gov/doing-bus...External Subdomain Doing Business with NASA
https://www.nasa.gov/get-invol...External Subdomain Get Involved
https://www.nasa.gov/contact-n...External Subdomain Contact
https://www.nasa.gov/learning-...External Subdomain For Kids and Students
https://www.nasa.gov/learning-...External Subdomain For Educators
https://www.nasa.gov/learning-...External Subdomain For Colleges and Universities
https://www.nasa.gov/learning-...External Subdomain For Professionals
/for-everyone/Subdomain Science for Everyone
https://www.nasa.gov/learning-...External Subdomain Request an Exhibit or Speaker
https://www.nasa.gov/learning-...External Subdomain STEM Engagement at NASA
https://www.nasa.gov/aeronauti...External Subdomain Science in the Air
https://www.nasa.gov/aeronauti...External Subdomain NASA Aircraft
https://www.nasa.gov/aeronauti...External Subdomain Flight Innovation
https://www.nasa.gov/aeronauti...External Subdomain Supersonic Flight
https://www.nasa.gov/aeronauti...External Subdomain Air Traffic Solutions
https://www.nasa.gov/aeronauti...External Subdomain Green Aviation Tech
https://www.nasa.gov/aeronauti...External Subdomain Drones & You
https://www.nasa.gov/technolog...External Subdomain Technology Transfer & Spinoffs
https://www.nasa.gov/space-tra...External Subdomain Space Travel Technology
https://www.nasa.gov/space-liv...External Subdomain Technology Living in Space
https://www.nasa.gov/manufactu...External Subdomain Manufacturing and Materials
https://www.nasa.gov/robotics/External Subdomain Robotics
https://www.nasa.gov/science-i...External Subdomain Science Instruments
https://www.nasa.gov/computing/External Subdomain Computing
/exoplanets/Subdomain Exoplanets
/universe/search-for-life/Subdomain The Search for Life in the Universe
/universe/stars/Subdomain Stars
/universe/galaxies/Subdomain Galaxies
/universe/black-holes/Subdomain Black Holes
/universe/the-big-bang/Subdomain The Big Bang
/universe/dark-matter-dark-ene...Subdomain Dark Matter & Dark Energy
https://science.nasa.gov/sun/Subdomain The Sun
https://science.nasa.gov/mercury/Subdomain Mercury
https://science.nasa.gov/venus/Subdomain Venus
https://science.nasa.gov/earth/Subdomain Earth
https://science.nasa.gov/moon/Subdomain The Moon
https://science.nasa.gov/mars/Subdomain Mars
https://science.nasa.gov/jupiter/Subdomain Jupiter
https://science.nasa.gov/saturn/Subdomain Saturn
https://science.nasa.gov/uranus/Subdomain Uranus
https://science.nasa.gov/neptune/Subdomain Neptune
/dwarf-planets/Subdomain Pluto & Dwarf Planets
/asteroids-comets-meteors/Subdomain Asteroids, Comets & Meteors
/solar-system/kuiper-belt/Subdomain The Kuiper Belt
/solar-system/oort-cloud/Subdomain The Oort Cloud
/skywatching/Subdomain Skywatching
https://ciencia.nasa.gov/External Subdomain Ciencia
https://www.nasa.gov/espanol/a...External Subdomain Aeronáutica
https://ciencia.nasa.gov/tierraExternal Subdomain Ciencias Terrestres
https://ciencia.nasa.gov/siste...External Subdomain Sistema Solar
https://ciencia.nasa.gov/universoExternal Subdomain Universo
https://science.nasa.gov/Subdomain All NASA Science
/earth-science/Earth Science
/planetary-science/Planetary Science
/astrophysics/Astrophysics & Space Science
/heliophysics/The Sun & Heliophysics
/biological-physical/Biological & Physical Sciences
/lunar-science/Lunar Science
/citizen-science/Citizen Science
/astromaterials/Astromaterials
https://www.nasa.gov/aeronauti...External Subdomain Aeronautics Research
/human-space-travel-research/Human Space Travel Research
https://www.nasa.gov/External Subdomain IMG-ALT NASA Logo
https://www.nasa.gov/External Subdomain Text duplicate IMG-ALT NASA Logo
https://plus.nasa.gov/External Subdomain NASA+
https://www.nasa.gov/External Subdomain Home
A-TITLE Home
https://science.nasa.gov/mars/Mars Home
/mars/facts/Facts
/planetary-science/programs/ma...Overview
/planetary-science/programs/ma...Rover Basics
/planetary-science/programs/ma...Mars Exploration Science Goals
/planetary-science/programs/ma...Mission Timeline Summary
/mission/mars-sample-return/Mars Sample Return
/mission/mars-2020-perseverance/Mars Perseverance Rover
/mission/msl-curiosity/Mars Curiosity Rover
/mission/maven/MAVEN
/mission/mars-reconnaissance-o...Mars Reconnaissance Orbiter
/mission/odyssey/Mars Odyssey
/planetary-science/programs/ma...More Mars Missions
/mars/resources/?topics=mars+r...The Mars Report
/mars/resources/?types=imagesImages
/mars/resources/?types=videosVideo
/mars/resources/?types=audioAudio
/solar-system/resources/resour...More Resources
/mars/stories/News & Features
https://science.nasa.gov/sun/Text duplicate The Sun
https://science.nasa.gov/mercury/Text duplicate Mercury
https://science.nasa.gov/venus/Text duplicate Venus
/earth/facts/Text duplicate Earth
https://science.nasa.gov/moon/Text duplicate The Moon
https://science.nasa.gov/mars/Text duplicate Mars
https://science.nasa.gov/jupiter/Text duplicate Jupiter
https://science.nasa.gov/saturn/Text duplicate Saturn
https://science.nasa.gov/uranus/Text duplicate Uranus
https://science.nasa.gov/neptune/Text duplicate Neptune
/dwarf-planets/Pluto & Dwarf Planets
/asteroids-comets-meteors/Asteroids, Comets & Meteors
/solar-system/kuiper-belt/Text duplicate The Kuiper Belt
/solar-system/oort-cloud/Text duplicate The Oort Cloud
https://science.nasa.gov/mars/Text duplicate Mars Home
/mars/facts/Text duplicate Facts
/mars/stories/Text duplicate News & Features
/mars/stories/New window Read More Mars Stories
/missions/maven/celebrating-10...New window IMG-ALT spacecraft orbiting red planet
A-TITLE MAVEN Marks 10 Years at Mars
/missions/maven/celebrating-10...New window MAVEN Marks 10 Years at Mars
A-TITLE MAVEN Marks 10 Years at Mars
/mars/resources/?topics=mars+r...IMG-ALT A rover sits on the hilly, orange Martian surface beneath a flat grey sky, surrounded by chunks of rock.
A-TITLE The Mars Report
/mars/resources/?topics=mars+r...Text duplicate The Mars Report
A-TITLE The Mars Report
https://www.nasa.gov/missions/...New window External Subdomain IMG-ALT One of the navigation cameras aboard NASA’s Perseverance Mars rover captured this view looking back at the “Bright Angel” area on July 30, the 1,224th Martia...
A-TITLE Perseverance Begins Long Climb Up Martian Crater Rim
https://www.nasa.gov/missions/...New window External Subdomain Perseverance Begins Long Climb Up Martian Crater Rim
A-TITLE Perseverance Begins Long Climb Up Martian Crater Rim
https://www.nasa.gov/missions/...New window External Subdomain IMG-ALT An illustration set against a pale orange sky shows a coaster-shaped spacecraft hovering at the top of the frame, with rockets at four corners firing jets to...
A-TITLE How Curiosity’s Sky Crane Changed the Way NASA Explores Mars
https://www.nasa.gov/missions/...New window External Subdomain How Curiosity’s Sky Crane Changed the Way NASA Explores Mars
A-TITLE How Curiosity’s Sky Crane Changed the Way NASA Explores Mars
https://www.nasa.gov/missions/...New window External Subdomain IMG-ALT NASA’s Perseverance Mars rover took this selfie, made up of 62 individual images, on July 23. A rock nicknamed “Cheyava Falls,” which has features that may b...
A-TITLE A Fascinating Mars Rock
https://www.nasa.gov/missions/...New window External Subdomain A Fascinating Mars Rock
A-TITLE A Fascinating Mars Rock
/resource/what-is-a-potential-...New window IMG-ALT NASA program scientist Lindsay Hays explains what defines potential signs of ancient life on other worlds and why they require future study. NASA’s Persevera...
A-TITLE What is a Potential Biosignature?
/resource/what-is-a-potential-...New window What is a Potential Biosignature?
A-TITLE What is a Potential Biosignature?
/planetary-science/programs/ma...Subdomain robotic explorers
/mission/mars-2020-perseverance/Subdomain Perseverance rover
/mars/facts/More Mars Facts
/missions/maven/celebrating-10...New window Read the Story
/planetary-science/programs/ma...Explore with Us
/planetary-science/programs/ma...Read More About the Interplanetary Internet
/mission/mars-sample-return/No Text
/mission/mars-2020-perseverance/No Text
/mission/msl-curiosity/No Text
/mission/maven/No Text
/mission/mars-reconnaissance-o...No Text
/mission/odyssey/No Text
/planetary-science/programs/ma...Learn More About Our Robotic Explorers
/mars/resources/Explore
/mars/stories/All Mars News & Features
/missions/maven/celebrating-10...Article 6 min read Celebrating 10 Years at Mars with NASA’s MAVEN Mission
IMG-ALT Graphic of MAVEN spacecraft with NASA meatball in top left corner and the text "Ten Years at Mars with MAVEN" in yellow letters across the left side of the g...
https://www.nasa.gov/solar-sys...External Subdomain Article 5 min read NASA Scientists Re-Create Mars ‘Spiders’ in a Lab for First Time
/missions/hubble/nasas-hubble-...6 min read NASA’s Hubble, MAVEN Help Solve the Mystery of Mars’ Escaping Water Article3 weeks ago
IMG-ALT On a black background, a large orange and white orb is surrounded by a diffuse, grainy, orange halo. The halo appears to have more material on its right side...
https://www.nasa.gov/missions/...External Subdomain 5 min read NASA’s Perseverance Rover to Begin Long Climb Up Martian Crater Rim Article2 months ago
https://www.nasa.gov/missions/...External Subdomain 5 min read Here’s How Curiosity’s Sky Crane Changed the Way NASA Explores Mars Article2 months ago
https://www.nasa.gov/humans-in...External Subdomain Learn More
/mission/msl-curiosity/Mars Science Laboratory: Curiosity Rover
IMG-ALT Mars rover sitting on the red soil of mars and facing the camera for a selfie
/mission/mars-2020-perseverance/Mars 2020: Perseverance Rover
IMG-ALT NASA’s Perseverance Mars rover took this selfie on July 23, 2024, the 1,218th Martian day, or sol, of the mission. To the left of the rover near the center o...
/mission/mars-sample-return/Text duplicate Mars Sample Return
/planetary-science/programs/ma...Mars Exploration
IMG-ALT The bright red-orange surface of Mars as seen from space.
https://science.nasa.gov/mars/Anchor Return to top
https://www.nasa.gov/about/External Subdomain About NASA's Mission
https://www.nasa.gov/get-invol...External Subdomain Join Us
https://www.nasa.gov/External Subdomain Text duplicate Home
https://www.nasa.gov/news/External Subdomain News & Events
https://www.nasa.gov/multimedia/External Subdomain Multimedia
https://plus.nasa.gov/External Subdomain Text duplicate NASA+
https://www.nasa.gov/nasa-miss...External Subdomain Missions
https://www.nasa.gov/humans-in...External Subdomain Humans in Space
https://science.nasa.gov/earth/Subdomain Earth & Climate
/solar-system/Subdomain The Solar System
/universe/Subdomain The Universe
https://science.nasa.gov/Subdomain Science
https://www.nasa.gov/aeronautics/External Subdomain Aeronautics
https://www.nasa.gov/technology/External Subdomain Technology
https://www.nasa.gov/learning-...External Subdomain Learning Resources
https://www.nasa.gov/about/External Subdomain About NASA
https://www.nasa.gov/es/External Subdomain NASA en Español
https://www.facebook.com/NASANew window External Subdomain No Text
https://www.instagram.com/nasa/New window External Subdomain No Text
https://x.com/NASANew window External No Text
https://www.youtube.com/@NASANew window External Subdomain No Text
https://www.nasa.gov/socialmedia/External Subdomain More NASA Social Accounts
https://www.nasa.gov/nasa-news...External Subdomain NASA Newsletters
https://www.nasa.gov/sitemap/External Subdomain Sitemap
A-TITLE Sitemap
https://www.nasa.gov/news/nasa...External Subdomain For Media
A-TITLE For Media
https://www.nasa.gov/nasa-web-...External Subdomain Privacy Policy
A-TITLE Privacy Policy
https://www.nasa.gov/foia/External Subdomain FOIA
A-TITLE FOIA
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Mars - NASA Science
Mars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited entirely by robots.

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