Astronomy.com - SEO Checker

Overview of the SEO Check
Meta information
97% 
Page quality
78% 
Page structure
58% 
Link structure
16% 
Server
77% 
External factors
100% 
SEO Score
Response time
0.71 s
File size
127.80 kB
Words
736
Media files
37
Number of links
133 internal / 32 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Astronomy Magazine: Space News, Observing, Planets, Galaxies
The page title should be shorter than 580 pixels. It is 586 pixels long. Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
Astronomy.com is for anyone who wants to learn more about astronomy and space, including planets, galaxies, asteroids, and NASA.
The length of the meta description is perfect. (820 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.astronomy.com/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en-us
Server location: Canada
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)
The domain is no subdomain.
The domain length is good.
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)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1
robotsindex, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
descriptionAstronomy.com is for anyone who wants to learn more about astronomy and space, including planets, galaxies, asteroids, and NASA.
generatorWordPress 6.5.4
msapplication-TileImagehttps://www.astronomy.com/uploads/2024/10/cropped-favicon-270x270.jpg
article:publisherhttps://www.facebook.com/AstronomyMagazine/
article:modified_time2025-06-17T16:23:08+00:00
langen-us
twitter:cardsummary_large_image
twitter:titleThe world's best website for the the world’s best-selling astronomy magazine.
twitter:descriptionAstronomy.com is for anyone who wants to learn more about astronomy events, cosmology, planets, galaxies, asteroids, astrophotography, the Big Bang, black holes, comets, constellations, eclipses, exoplanets, nebulae, meteors, quasars, observing, telescopes, NASA, Hubble, space missions, stargazing, and more.
twitter:site@AstronomyMag
og:localeen_US
og:typewebsite
og:titleThe world's best website for the the world’s best-selling astronomy magazine.
og:descriptionAstronomy.com is for anyone who wants to learn more about astronomy events, cosmology, planets, galaxies, asteroids, astrophotography, the Big Bang, black holes, comets, constellations, eclipses, exoplanets, nebulae, meteors, quasars, observing, telescopes, NASA, Hubble, space missions, stargazing, and more.
og:urlhttps://www.astronomy.com/
og:site_nameAstronomy Magazine
og:imagehttps://www.astronomy.com/uploads/2023/09/Astronomy-Home-Page-Image.png
og:image:width1200
og:image:height630
og:image:typeimage/png
charsetUTF-8

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Page quality

Content
(Critically important)
Words from the H1 heading are not used in the page content.
This page contains 736 words. That's ok.
24.6% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
The page contains a listing, which indicates a good text layout.
3 paragraphs were found on this page.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 16.5 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 15 tags for this page.
Image SEO
(Somewhat important)
27 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
This page is optimized perfectly for social networks.
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
/uploads/2023/01/cropped-Logo-white@2x.pngAstronomy Magazine logo
...-592e-48d7-84c3-c5eedde8f0b6-768x430.pngNo alt attribute provided
/uploads/2025/06/jwst-prelaunch-768x512.jpgNo alt attribute provided
/uploads/2025/05/omegacen-lmc-768x401.pngOmega Centauri and the Large Magellanic Cloud
...eumTaaMaskMostlyPhotographed-768x960.jpgNo alt attribute provided
/uploads/2025/06/ns-29_sunrise-768x576.jpgNo alt attribute provided
...25/06/Axiom_Mission_4_Crew-1-768x512.pngThe Axiom Mission 4 (Ax-4) crew poses in their official flight suits against a dark blue background. From left to right: an astronaut from India, Shubhanshu Shukla; NASA astronaut and mission commander Peggy Whitson (front center); European Space Agency astronaut from Poland, Sławosz Uznański (back center); and Hungarian astronaut Tibor Kapu (right). Each crew member wears a navy and black suit with mission patches, national flags, and name tags.
/uploads/2025/06/Sh2_170_jpeg-2560x1824.jpgNo alt attribute provided
/uploads/2025/05/ASY-SM0625_05-768x516.pngPath of Vesta in June 2025
/uploads/2025/06/Leviathan-768x576.jpgNo alt attribute provided
...in_the_december_21_night_sky-768x432.jpgNo alt attribute provided
...ds/2025/06/noao-n5907ehrhorn-768x518.jpgNo alt attribute provided
/uploads/2025/06/ns-29_sunrise-768x576.jpgNo alt attribute provided
/uploads/2025/05/ASY250601.jpgAstronomy magazine June 2025 cover
.../2025/04/Crab-nebula-canvas--300x300.jpgNo alt attribute provided
/uploads/2023/04/81583a.jpgCampo del Cielo Meteorite
...lobe_black-removebg-preview-300x276.webpNo alt attribute provided
...Screenshot-2025-01-02-084347-300x261.pngNo alt attribute provided
/uploads/2024/09/p-e4614_1-300x276.webpNo alt attribute provided
..._6_globe_2-removebg-preview-300x300.webpNo alt attribute provided
/uploads/2024/09/89154_500-300x300.webpNo alt attribute provided
/uploads/2025/04/NASA-kit-bag--300x300.jpgNo alt attribute provided
...r-black-front-66995faeb41d2-300x300.webpNo alt attribute provided
...t-black-front-668a2203d19e9-300x300.webpNo alt attribute provided
...e-black-front-66933aba931d9-300x300.webpNo alt attribute provided
...swan-AXP-PhotographyUnsplash-300x200.jpgNo alt attribute provided
...rrakesh-Zoltan-Tasi-Unsplash-300x189.jpgNo alt attribute provided
...4/10/Petra-Snowscat-Unsplash-300x200.jpgNo alt attribute provided
...gafoss-Nuno-Antunes-Unsplash-300x200.jpgNo alt attribute provided
...wer-Edoardo-Bortoli-Unsplash-300x202.jpgNo alt attribute provided
...ona-Logan-Armstrong-Unsplash-300x200.jpgNo alt attribute provided
.../Egypt-Simon-Berger-Unsplash-300x200.jpgNo alt attribute provided
.../Cappadocia-Tony-LeeUnsplash-300x200.jpgNo alt attribute provided
...ads/sites/2/2023/01/3-Issue-Image@2x.pngAstronomy Magazine
/uploads/2023/01/cropped-Logo-white@2x.pngAstronomy Magazine logo
...ites/2/2023/01/cropped-Logo-white@2x.pngPublisher logo

Page structure

H1 heading
(Critically important)
Astronomy Magazine – Your source for the latest news on astronomy, observing events, space missions, and more.
The H1 heading is perfect.
Headings
(Important)
Some headings occur twice on the page.
There are 43 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 Astronomy Magazine – Your source for the latest news on astronomy, observing events, space missions, and more.
H2 Top Stories
H2 What’s Launching This Week
H2 Picture of the Day
H2 In the Sky
H2 More News
H2 June 2025
H2 Product Recommendations
H2 Popular Explorations
H3 This graphic shows what’s at stake in the proposed 2026 NASA budget
H3 James Webb, Hubble space telescopes face reduction in operations over funding shortfalls
H3 Explore these telescopic delights of the Southern Hemisphere sky
H3 Join me in Egypt for the best eclipse of your life
H3 Axiom 4 launch delayed again as Starlink and Blue Origin missions prepare for liftoff
H3 Axiom 4 makes history while SpaceX Starlink launches dominate the week
H3 A rosette is a rosette
H3 The Sky Today on Wednesday, June 18: Vesta sits stationary
H3 Michael’s Miscellany: Celebrating William Parsons
H3 June 17, 2 BCE: A conjunction between Venus and Jupiter
H3 Deep-Sky Dreams: Edge-on galaxy NGC 5907
H3 Axiom 4 launch delayed again as Starlink and Blue Origin missions prepare for liftoff Duplicate text
H3 The Crab Nebula Canvas
H3 Campo del Cielo Meteorite
H3 6-Inch Neptune Globe
H3 NASA SpaceX Crew 10 Mission Patch
H3 Atlantis Orbiter 1/144 Model
H3 6" Earth Globe
H3 Infrared Jupiter Puzzle
H3 NASA Kit Bag
H3 Artemis Program Addidas Quarter zip pullover
H3 Astronomy Magazine Under Armour® men's polo
H3 NASA Embroidered Unisex Hoodie
H3 2027 Egypt 12-Night Total Solar Eclipse Tour with Nile Cruise
H3 2026 Morocco, Portugal, & Spain 17-Night Total Solar Eclipse Tour
H3 2027 Jordan & Egypt 13-Night Total Solar Eclipse Tour
H3 2026 Iceland 7-Night Total Solar Eclipse Tour
H3 2026 Portugal & Spain 15-Night Total Solar Eclipse Tour
H3 2026 Spain 9-Night Total Solar Eclipse Tour
H3 2027 Egypt 8-Night Total Solar Eclipse Tour
H3 2027 Egypt Pre-Eclipse Turkey Extension: Istanbul & Cappadocia
H3 Astronomy magazine: 50 years and counting
H3 Astronomy Newsletter
H3 Login
Some internal link anchor texts are too long.
Some anchor texts are used more than once.
17 links don't have an anchor text.
The number of internal links is ok.
All internal links are not using dynamic parameters.
There are too many external links (32) on this page.
LinkAttributesAnchor text
https://www.astronomy.com/Anchor Skip to content
https://forum.astronomy.com/New window External Subdomain >> Visit Now
https://www.astronomy.com/Subdomain IMG-ALT Astronomy Magazine logo
https://thespacestore.com/External Shop
https://kalmbach.dragonforms.c...External Subdomain Subscribe
https://www.astronomy.com/news/Subdomain News
/science/Subdomain Science
/science/solar-system/Subdomain Solar System
/science/exoplanets/Subdomain Exoplanets
/science/stars/Subdomain Stars
/science/milky-way/Subdomain Milky Way
/science/galaxies/Subdomain Galaxies
/science/exotic-objects/Subdomain Exotic Objects
/science/cosmology/Subdomain Cosmology
/observing/Subdomain Observing
/in-the-sky/Subdomain In The Sky
/observing/upcoming-events/Subdomain Upcoming Events
/observing/the-sun/Subdomain The Sun
/observing/the-moon/Subdomain The Moon
/observing/planets-observing/Subdomain Planets
/observing/deep-sky-objects/Subdomain Deep-Sky Objects
/observing/observing-basics/Subdomain Observing Basics
/observing/telescopes-equipment/Subdomain Telescopes and Equipment
/observing/astrophotography/Subdomain Astrophotography
/observing/gear-guide/Subdomain Gear Guide
/tags/this-week-in-astronomy/Subdomain This Week in Astronomy
/space-exploration/Subdomain Space Exploration
/whats-launching-this-week/Subdomain What’s Launching This Week
/space-exploration/human-space...Subdomain Human Spaceflight
/space-exploration/robotic-spa...Subdomain Robotic Spaceflight
/magazine/Subdomain The Magazine
/ask-astro/Subdomain Ask Astro
/newsletters/universe-discovered/Subdomain Universe, Discovered
https://www.astronomy.com/news/Subdomain Text duplicate News
/science/Subdomain Text duplicate Science
/science/solar-system/Subdomain Text duplicate Solar System
/science/exoplanets/Subdomain Text duplicate Exoplanets
/science/stars/Subdomain Text duplicate Stars
/science/milky-way/Subdomain Text duplicate Milky Way
/science/galaxies/Subdomain Text duplicate Galaxies
/science/exotic-objects/Subdomain Text duplicate Exotic Objects
/science/cosmology/Subdomain Text duplicate Cosmology
/observing/Subdomain Text duplicate Observing
/in-the-sky/Subdomain Text duplicate In The Sky
/observing/upcoming-events/Subdomain Text duplicate Upcoming Events
/observing/the-sun/Subdomain Text duplicate The Sun
/observing/the-moon/Subdomain Text duplicate The Moon
/observing/planets-observing/Subdomain Text duplicate Planets
/observing/deep-sky-objects/Subdomain Text duplicate Deep-Sky Objects
/observing/observing-basics/Subdomain Text duplicate Observing Basics
/observing/telescopes-equipment/Subdomain Text duplicate Telescopes and Equipment
/observing/astrophotography/Subdomain Text duplicate Astrophotography
/observing/gear-guide/Subdomain Text duplicate Gear Guide
/tags/this-week-in-astronomy/Subdomain Text duplicate This Week in Astronomy
/space-exploration/Subdomain Text duplicate Space Exploration
/whats-launching-this-week/Subdomain Text duplicate What’s Launching This Week
/space-exploration/human-space...Subdomain Text duplicate Human Spaceflight
/space-exploration/robotic-spa...Subdomain Text duplicate Robotic Spaceflight
/magazine/Subdomain Text duplicate The Magazine
/ask-astro/Subdomain Text duplicate Ask Astro
/newsletters/universe-discovered/Subdomain Text duplicate Universe, Discovered
https://thespacestore.com/External Text duplicate Shop
https://kalmbach.dragonforms.c...External Subdomain Text duplicate Subscribe
https://www.astronomy.com/news/Subdomain View All News
/science/this-graphic-shows-wh...Subdomain No Text
/science/Subdomain Text duplicate Science
/science/this-graphic-shows-wh...Subdomain This graphic shows what’s at stake in the proposed 2026 NASA budget
/science/james-webb-hubble-spa...Subdomain No Text
/science/Subdomain Text duplicate Science
/science/james-webb-hubble-spa...Subdomain James Webb, Hubble space telescopes face reduction in operations over funding shortfalls
/observing/telescopic-delights...Subdomain IMG-ALT Omega Centauri and the Large Magellanic Cloud
/observing/Subdomain Text duplicate Observing
/observing/telescopic-delights...Subdomain Explore these telescopic delights of the Southern Hemisphere sky
/observing/join-me-in-egypt-fo...Subdomain No Text
/observing/Subdomain Text duplicate Observing
/observing/join-me-in-egypt-fo...Subdomain Join me in Egypt for the best eclipse of your life
/whats-launching-this-week/Subdomain View All
/whats-launching-this-week/axi...Subdomain No Text
/whats-launching-this-week/Subdomain Text duplicate What’s Launching This Week
/whats-launching-this-week/axi...Subdomain Axiom 4 launch delayed again as Starlink and Blue Origin missions prepare for liftoff
/whats-launching-this-week/axi...Subdomain IMG-ALT The Axiom Mission 4 (Ax-4) crew poses in their official flight suits against a dark blue background. From left to right: an astronaut from India, Shubhanshu ...
/whats-launching-this-week/Subdomain Text duplicate What’s Launching This Week
/whats-launching-this-week/axi...Subdomain Axiom 4 makes history while SpaceX Starlink launches dominate the week
/picture-of-the-day/Subdomain See all photos
/picture-of-the-day/photo/a-ro...Subdomain No Text
/picture-of-the-day/photo/a-ro...Subdomain A rosette is a rosette
/in-the-sky/Subdomain Explore all
/observing/the-sky-today-wedne...Subdomain IMG-ALT Path of Vesta in June 2025
/observing/Subdomain Text duplicate Observing
/observing/the-sky-today-wedne...Subdomain The Sky Today on Wednesday, June 18: Vesta sits stationary
https://www.astronomy.com/news/Subdomain Text duplicate View All News
/today-in-the-history-of-astro...Subdomain No Text
/today-in-the-history-of-astro...Subdomain Today in the History of Astronomy
/today-in-the-history-of-astro...Subdomain Michael’s Miscellany: Celebrating William Parsons
/today-in-the-history-of-astro...Subdomain No Text
/today-in-the-history-of-astro...Subdomain Text duplicate Today in the History of Astronomy
/today-in-the-history-of-astro...Subdomain June 17, 2 BCE: A conjunction between Venus and Jupiter
/observing/deep-sky-dreams-ngc...Subdomain No Text
/observing/deep-sky-objects/Subdomain Text duplicate Deep-Sky Objects
/observing/deep-sky-dreams-ngc...Subdomain Deep-Sky Dreams: Edge-on galaxy NGC 5907
/whats-launching-this-week/axi...Subdomain No Text
/whats-launching-this-week/Subdomain Text duplicate What’s Launching This Week
/whats-launching-this-week/axi...Subdomain Text duplicate Axiom 4 launch delayed again as Starlink and Blue Origin missions prepare for liftoff
/issues/2025/june-2025/Subdomain June 2025
/science/johannes-kepler-wrote...Subdomain How Johannes Kepler wrote the first science-fiction story
/observing/how-i-learned-to-lo...Subdomain How one astrophotographer learned to love the northern lights
/science/explore-the-moons-mot...Subdomain Explore the celestial motions of the Moon
https://kalmbach.dragonforms.c...External Subdomain Text duplicate Subscribe
https://thespacestore.com/coll...External New arrivals The Crab Nebula Canvas
https://thespacestore.com/coll...External Gifts & Toys Campo del Cielo Meteorite
IMG-ALT Campo del Cielo Meteorite
https://thespacestore.com/prod...External Globes & Maps 6-Inch Neptune Globe
https://thespacestore.com/prod...External Gifts & Toys NASA SpaceX Crew 10 Mission Patch
https://thespacestore.com/coll...External STEM Toys Atlantis Orbiter 1/144 Model
https://thespacestore.com/coll...External Globes & Maps 6" Earth Globe
https://thespacestore.com/prod...External Gifts & Toys Infrared Jupiter Puzzle
https://thespacestore.com/prod...External Apparel NASA Kit Bag
https://thespacestore.com/coll...External Apparel Artemis Program Addidas Quarter zip pullover
https://thespacestore.com/coll...External Apparel Astronomy Magazine Under Armour® men's polo
https://thespacestore.com/coll...External Apparel NASA Embroidered Unisex Hoodie
https://thespacestore.com/External Visit The Space Store
/observing/2027-egypt-12-night...Subdomain No Text
/observing/Subdomain Text duplicate Observing
/observing/2027-egypt-12-night...Subdomain 2027 Egypt 12-Night Total Solar Eclipse Tour with Nile Cruise
/observing/2026-morocco-portug...Subdomain No Text
/observing/Subdomain Text duplicate Observing
/observing/2026-morocco-portug...Subdomain 2026 Morocco, Portugal, & Spain 17-Night Total Solar Eclipse Tour
/observing/2027-jordan-egypt-1...Subdomain No Text
/observing/Subdomain Text duplicate Observing
/observing/2027-jordan-egypt-1...Subdomain 2027 Jordan & Egypt 13-Night Total Solar Eclipse Tour
/observing/2026-iceland-7-nigh...Subdomain No Text
/observing/Subdomain Text duplicate Observing
/observing/2026-iceland-7-nigh...Subdomain 2026 Iceland 7-Night Total Solar Eclipse Tour
/observing/2026-portugal-spain...Subdomain No Text
/observing/Subdomain Text duplicate Observing
/observing/2026-portugal-spain...Subdomain 2026 Portugal & Spain 15-Night Total Solar Eclipse Tour
/observing/2026-spain-9-night-...Subdomain No Text
/observing/Subdomain Text duplicate Observing
/observing/2026-spain-9-night-...Subdomain 2026 Spain 9-Night Total Solar Eclipse Tour
/observing/2027-egypt-8-night-...Subdomain No Text
/observing/Subdomain Text duplicate Observing
/observing/2027-egypt-8-night-...Subdomain 2027 Egypt 8-Night Total Solar Eclipse Tour
/observing/2027-egypt-pre-ecli...Subdomain No Text
/observing/Subdomain Text duplicate Observing
/observing/2027-egypt-pre-ecli...Subdomain 2027 Egypt Pre-Eclipse Turkey Extension: Istanbul & Cappadocia
https://kalmbach.dragonforms.c...External Subdomain Count me in
https://www.astronomy.com/Subdomain Text duplicate IMG-ALT Astronomy Magazine logo
https://www.facebook.com/Astro...External Subdomain Facebook
https://www.linkedin.com/compa...External Subdomain LinkedIn
https://www.youtube.com/user/a...External Subdomain YouTube
https://www.instagram.com/astr...External Subdomain Instagram
https://twitter.com/AstronomyMagExternal Twitter
/about-us/Subdomain About Us
/contact/Subdomain Contact Us
https://kalmbach.dragonforms.c...External Subdomain Text duplicate Subscribe
https://kalmbach.dragonforms.c...External Subdomain Customer Service
/advertise-with-us/Subdomain Advertising
https://firecrown.com/terms-of...External Terms of Use
https://firecrown.com/privacy-...External Privacy Policy
https://firecrown.com/External More Sites from Firecrown Media
https://www.astronomy.com/Anchor Scroll to Top
/register/Subdomain Create an Account
https://kalmbach.dragonforms.c...New window External Subdomain Forgot your password?
https://kalmbach.dragonforms.c...New window External Subdomain Manage My Account
/contact/Subdomain Contact
https://kalmbach.dragonforms.c...New window External Subdomain Customer Support

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.astronomy.com/"
HTTP header
(Important)
The X-powered header is sent within the response header. (unnecessary)
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time of 0.71 seconds is longer than the recommended limit of 0.4 seconds. A high response time unnecessarily slows down search engine crawling and results in bad user experience as well.
The file size of the HTML document is fine (128 kB).

HTTP Response Header

NameValue
content-typetext/html; charset=UTF-8
x-powered-byPHP/7.4.33
set-cookie196 Characters
cache-controlmax-age=0
link<https://www.astronomy.com/wp-json/>; rel="https://api.w.org/"
content-encodinggzip
accept-rangesbytes
via1.1 varnish, 1.1 varnish
dateWed, 18 Jun 2025 07:14:27 GMT
x-served-bycache-bfi-krnt7300062-BFI, cache-fra-etou8220060-FRA
x-cacheMISS, MISS
x-cache-hits0, 0
varyFastly-GeoCountry, Accept-Encoding
strict-transport-securitymax-age=31557600
statuscode200
http_versionHTTP/2

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 432 referring domains.
This page has 19,038 backlinks.
This page has backlinks from 348 different ip addresses.

Robots.txt

Crawl-delay: 10
# START YOAST BLOCK
# ---------------------------
User-agent: *
Disallow:

Sitemap: https://www.astronomy.com/sitemap_index.xml
# ---------------------------
# END YOAST BLOCK

Search preview

www.astronomy.com
Astronomy Magazine: Space News, Observing, Planets, Galaxies
Astronomy.com is for anyone who wants to learn more about astronomy and space, including planets, galaxies, asteroids, and NASA.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
Astronomy93%Check
Astronomy Magazine80%Check
Space79%Check
Astronomy News79%Check
Space News72%Check
Magazine68%Check
News66%Check
Observing61%Check
Latest News60%Check
NASA58%Check

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