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Rarest Space Telescope — All 147 Answers Ranked by Rarity

147 answers are accepted for “Name a space telescope”. Akari is the rarest space telescope in this ranking, with 0 monthly Wikipedia views (rarity 0.997, Legendary). PRIMA ties Akari on rarity, with 0 monthly Wikipedia views. James Webb Space Telescope is the most common space telescope in this ranking, with 591,472 monthly Wikipedia views. Combined monthly Wikipedia views across the 147 answers: 2,701,859. Akari is 0.0% of that total. 30 answers are Epic or Legendary: Akari (Legendary), PRIMA (Legendary), High-Definition Space Telescope (Legendary), and 27 more.

Quick answer

Monthly English Wikipedia pageviews. Source: Wikidata + Wikipedia pageviews (2026-10).

Ranked answers

147 answers to “Name a space telescope”, rarest first. A rarity of 1 is the rarest answer in this prompt.
Rank Answer Tier Rarity Monthly Wikipedia views
1 Akari on Wikipedia Legendary 0.997 0
2 PRIMA on Wikipedia Legendary 0.997 0
3 High-Definition Space Telescope on Wikipedia Legendary 0.986 93
4 X-ray space telescope on Wikipedia Legendary 0.979 119
5 Cosmic Infrared Background ExpeRiment on Wikipedia Legendary 0.973 224
6 Kosmos 215 on Wikipedia Legendary 0.966 298
7 Supernova/Acceleration Probe on Wikipedia Legendary 0.959 316
8 SWAP on Wikipedia Legendary 0.952 318
9 UniBRITE-1 on Wikipedia Legendary 0.945 320
10 HIBARI on Wikipedia Legendary 0.938 377
11 Stars-AO on Wikipedia Legendary 0.932 384
12 Max Valier on Wikipedia Epic 0.925 424
13 Space Solar Telescope on Wikipedia Epic 0.918 541
14 Advanced Technology Large-Aperture Space Telescope on Wikipedia Epic 0.911 565
15 STSat-1 on Wikipedia Epic 0.904 586
16 Eddington on Wikipedia Epic 0.897 615
17 TD-1A on Wikipedia Epic 0.890 655
18 TUGSAT-1 on Wikipedia Epic 0.884 718
19 Gravity and Extreme Magnetism Small Explorer on Wikipedia Epic 0.877 729
20 XEUS on Wikipedia Epic 0.870 735
21 Heweliusz on Wikipedia Epic 0.863 737
22 LOFT on Wikipedia Epic 0.856 745
23 Array of Low Energy X-ray Imaging Sensors on Wikipedia Epic 0.849 755
24 ABRIXAS on Wikipedia Epic 0.842 763
25 EChO on Wikipedia Epic 0.836 789
26 Ginga on Wikipedia Epic 0.829 832
27 Hinotori on Wikipedia Epic 0.822 845
28 Hopkins Ultraviolet Telescope on Wikipedia Epic 0.815 848
29 Lem on Wikipedia Epic 0.808 859
30 Small Astronomy Satellite 3 on Wikipedia Epic 0.801 868
31 High Energy Astronomy Observatory 1 on Wikipedia Rare 0.795 979
32 CHIPS on Wikipedia Rare 0.788 990
33 Hisaki on Wikipedia Rare 0.781 1,052
34 High Energy Astronomy Observatory 3 on Wikipedia Rare 0.774 1,070
35 Hakucho on Wikipedia Rare 0.767 1,073
36 TSUBAME on Wikipedia Rare 0.760 1,100
37 Mikhailo Lomonosov on Wikipedia Rare 0.753 1,139
38 Solar Anomalous and Magnetospheric Particle Explorer on Wikipedia Rare 0.747 1,167
39 Advanced X-ray Imaging Satellite on Wikipedia Rare 0.740 1,169
40 Calorimetric Electron Telescope on Wikipedia Rare 0.733 1,198
41 Small Astronomy Satellite 2 on Wikipedia Rare 0.726 1,219
42 EXOSAT on Wikipedia Rare 0.719 1,262
43 Gamma on Wikipedia Rare 0.712 1,294
44 Orbiting Astronomical Observatory 3 on Wikipedia Rare 0.705 1,355
45 Astronomical Netherlands Satellite on Wikipedia Rare 0.699 1,364
46 Solar Radiation and Climate Experiment on Wikipedia Rare 0.692 1,366
47 AGILE on Wikipedia Rare 0.685 1,501
48 Cos-B on Wikipedia Rare 0.678 1,517
49 MOST on Wikipedia Rare 0.671 1,530
50 Galileo Solar Space Telescope on Wikipedia Rare 0.664 1,584
51 Tenma on Wikipedia Rare 0.658 1,642
52 Liquid-mirror space telescope on Wikipedia Rare 0.651 1,646
53 Hard X-ray Modulation Telescope on Wikipedia Rare 0.644 1,690
54 Yohkoh on Wikipedia Rare 0.637 1,748
55 Near Earth Object Surveillance Satellite on Wikipedia Rare 0.630 1,868
56 BeppoSAX on Wikipedia Rare 0.623 1,948
57 Wide Field Infrared Explorer on Wikipedia Rare 0.616 1,991
58 ASTERIA on Wikipedia Rare 0.610 2,003
59 SPICA on Wikipedia Rare 0.603 2,021
60 Far Ultraviolet Spectroscopic Explorer on Wikipedia Uncommon 0.596 2,025
61 Extreme Ultraviolet Explorer on Wikipedia Uncommon 0.589 2,056
62 HALCA on Wikipedia Uncommon 0.582 2,113
63 Explorer 11 on Wikipedia Uncommon 0.575 2,159
64 Whipple on Wikipedia Uncommon 0.568 2,164
65 Rossi X-ray Timing Explorer on Wikipedia Uncommon 0.562 2,172
66 Midcourse Space Experiment on Wikipedia Uncommon 0.555 2,212
67 TianQin on Wikipedia Uncommon 0.548 2,355
68 SPARCS on Wikipedia Uncommon 0.541 2,386
69 Spektr-UV on Wikipedia Uncommon 0.534 2,428
70 European Retrievable Carrier on Wikipedia Uncommon 0.527 2,621
71 THESEUS on Wikipedia Uncommon 0.521 2,726
72 Dark Matter Particle Explorer on Wikipedia Uncommon 0.514 2,729
73 Suzaku on Wikipedia Uncommon 0.507 2,795
74 Sentinel Space Telescope on Wikipedia Uncommon 0.500 2,801
75 Koronas-Foton on Wikipedia Uncommon 0.493 2,834
76 BlackCAT on Wikipedia Uncommon 0.486 2,942
77 Odin on Wikipedia Uncommon 0.479 2,952
78 TRACE on Wikipedia Uncommon 0.473 2,974
79 AstroSat-2 on Wikipedia Uncommon 0.466 3,010
80 Infrared Space Observatory on Wikipedia Uncommon 0.459 3,314
81 Astron on Wikipedia Uncommon 0.452 3,324
82 Interface Region Imaging Spectrograph on Wikipedia Uncommon 0.445 3,401
83 Einstein Observatory on Wikipedia Uncommon 0.438 3,408
84 Reuven Ramaty High Energy Solar Spectroscopic Imager on Wikipedia Uncommon 0.432 3,409
85 Orbiting Astronomical Observatory 2 on Wikipedia Uncommon 0.425 3,460
86 Granat on Wikipedia Uncommon 0.418 3,710
87 Space Interferometry Mission on Wikipedia Uncommon 0.411 3,806
88 International Ultraviolet Explorer on Wikipedia Uncommon 0.404 3,961
89 Origins Space Telescope on Wikipedia Familiar 0.397 4,248
90 ROSAT on Wikipedia Familiar 0.390 4,259
91 XPoSat on Wikipedia Familiar 0.384 4,301
92 UVEX on Wikipedia Familiar 0.377 4,645
93 Hinode on Wikipedia Familiar 0.370 4,694
94 Einstein Probe on Wikipedia Familiar 0.363 4,942
95 Orbiting Astronomical Observatory on Wikipedia Familiar 0.356 4,998
96 IXPE on Wikipedia Familiar 0.349 5,117
97 Uhuru on Wikipedia Familiar 0.342 5,160
98 Kvant-1 on Wikipedia Familiar 0.336 5,512
99 Space Variable Objects Monitor on Wikipedia Familiar 0.329 5,800
100 Spektr-RG on Wikipedia Familiar 0.322 5,857
101 Spektr-R on Wikipedia Familiar 0.315 5,896
102 GALEX on Wikipedia Familiar 0.308 6,260
103 LiteBIRD on Wikipedia Familiar 0.301 6,353
104 Apollo Telescope Mount on Wikipedia Familiar 0.295 6,369
105 Solar Maximum Mission on Wikipedia Familiar 0.288 6,445
106 Habitable Exoplanets Observatory on Wikipedia Familiar 0.281 6,453
107 Compton Spectrometer and Imager on Wikipedia Familiar 0.274 6,643
108 AstroSat on Wikipedia Familiar 0.267 7,100
109 INTEGRAL on Wikipedia Familiar 0.260 7,663
110 IRAS on Wikipedia Familiar 0.253 7,917
111 NuSTAR on Wikipedia Familiar 0.247 8,139
112 Digitized Sky Survey on Wikipedia Familiar 0.240 8,143
113 Advanced Composition Explorer on Wikipedia Familiar 0.233 8,364
114 CoRoT on Wikipedia Familiar 0.226 8,622
115 CHEOPS on Wikipedia Familiar 0.219 9,887
116 Terrestrial Planet Finder on Wikipedia Familiar 0.212 10,375
117 NEO Surveyor on Wikipedia Familiar 0.205 11,172
118 Orbiting Solar Observatory on Wikipedia Common 0.199 11,256
119 Euclid on Wikipedia Common 0.192 11,294
120 Pandora on Wikipedia Common 0.185 12,050
121 ARIEL on Wikipedia Common 0.178 12,826
122 Advanced Telescope for High Energy Astrophysics on Wikipedia Common 0.171 12,941
123 SPHEREx on Wikipedia Common 0.164 14,084
124 Cosmic Background Explorer on Wikipedia Common 0.158 14,727
125 Submillimeter Wave Astronomy Satellite on Wikipedia Common 0.151 15,378
126 Herschel Space Observatory on Wikipedia Common 0.144 15,753
127 Compton Gamma Ray Observatory on Wikipedia Common 0.137 17,895
128 Hipparcos on Wikipedia Common 0.130 19,824
129 Wilkinson Microwave Anisotropy Probe on Wikipedia Common 0.123 19,999
130 Solar gravitational lens on Wikipedia Common 0.116 20,025
131 XMM-Newton on Wikipedia Common 0.110 21,705
132 Wide-field Infrared Survey Explorer on Wikipedia Common 0.103 21,724
133 PLATO on Wikipedia Common 0.096 24,695
134 Fermi Gamma-ray Space Telescope on Wikipedia Common 0.089 25,023
135 Solar and Heliospheric Observatory on Wikipedia Common 0.082 25,192
136 Transiting Exoplanet Survey Satellite on Wikipedia Common 0.075 34,672
137 Xuntian on Wikipedia Common 0.068 35,560
138 Planck on Wikipedia Common 0.062 36,265
139 Spitzer Space Telescope on Wikipedia Common 0.055 40,860
140 Neil Gehrels Swift Observatory on Wikipedia Common 0.048 51,171
141 Habitable Worlds Observatory on Wikipedia Common 0.041 51,587
142 Gaia on Wikipedia Common 0.034 58,942
143 Kepler space telescope on Wikipedia Common 0.027 66,515
144 Chandra X-ray Observatory on Wikipedia Common 0.021 74,402
145 Nancy Grace Roman Space Telescope on Wikipedia Common 0.014 505,372
146 Hubble Space Telescope on Wikipedia Common 0.007 507,525
147 James Webb Space Telescope on Wikipedia Common 0.000 591,472

FAQ

What is the rarest space telescope?

Akari is the rarest space telescope in this ranking, with 0 monthly Wikipedia views (rarity 0.997, Legendary).

How many space telescopes are there?

There are 147 space telescopes in this ranking, from Akari (rarest) to James Webb Space Telescope (most common).

What is the most common space telescope?

James Webb Space Telescope is the most common space telescope in this ranking, with 591,472 monthly Wikipedia views (Common).

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Sources

Recorded source: Wikidata + Wikipedia pageviews (2026-10). The answer list is compiled from Wikidata (CC0), and the view counts are monthly English Wikipedia pageviews. Rarity is the percentile of the popularity figure inside this prompt: 1 is the rarest and 0 is the most common. Linked names open the English Wikipedia article stored on that answer.