Robotic Explorers of the Solar System

1959 – ongoing113 items

planetsspace
“The Day the Earth Smiled”: Saturn eclipsing the Sun, seen by Cassini on 19 July 2013, with Earth a faint dot beyond the rings. NASA/JPL-Caltech/SSI. Public domain, via Wikimedia Commons.
“The Day the Earth Smiled”: Saturn eclipsing the Sun, seen by Cassini on 19 July 2013, with Earth a faint dot beyond the rings. NASA/JPL-Caltech/SSI. Public domain, via Wikimedia Commons.

Sixty years of robots on other worlds

In September 1959 a Soviet sphere of metal pennants hit the Moon, the first human object to touch another world. Since then robots have flown past every planet, landed on the Moon, Venus, Mars, Titan, a comet and three asteroids, and two of them have crossed out of the Sun’s bubble into interstellar space. This timeline follows them from Luna 2 to Voyager, Cassini, New Horizons and the James Webb Space Telescope.

How to read it

  • Mission bands run from launch to the last signal, and sit at the launch pad on the map. A mission still flying has no end. Its big moments (a flyby, an orbit insertion, a landing) are nested inside it.

  • Era bands: the Soviet Moon and Venus programmes, NASA’s eleven-year gap, “faster, better, cheaper”, the unbroken robotic watch on Mars and the new race to the Moon.

  • One tag per world: mercury, venus, moon, mars, jupiter, saturn, uranus, neptune, pluto, plus sun, comets, asteroids and kuiper belt.

  • One tag per space power: ussr, usa, europe, japan, india and china. Follow sample return for the handfuls of other worlds brought home.

Dates are Gregorian and times UTC. Most launch and encounter dates come from Asif Siddiqi’s NASA chronicle Beyond Earth and the NSSDCA Master Catalog.

Look again at that dot. That’s here. That’s home. That’s us. — Carl Sagan, Pale Blue Dot, 1994, on Voyager 1’s picture of Earth from six billion kilometres

Items

  1. The Soviet Luna programme

    ≈ 17 years, 7 months

  2. Luna 1 misses the Moon

  3. Luna 2

    ≈ 1 day, 14 hours · Baikonur, Site 1

  4. Luna 3 photographs the far side

  5. The Soviet Venus programme

    ≈ 24 years, 4 months

  6. Mariner 2

    ≈ 4 months, 9 days · Launch Complex 12, Cape Canaveral

  7. Mariner 2 passes Venus

  8. Mariner 4

    ≈ 3 years, 22 days · Launch Complex 12, Cape Canaveral

  9. Mariner 4 photographs Mars

  10. Luna 9 lands softly on the Moon

  11. Venera 4 falls into Venus’s air

  12. Venera 7

    ≈ 4 months · Baikonur Cosmodrome

  13. Luna 16 brings Moon soil home by robot

    Steppe south-east of Zhezkazgan, Kazakhstan

  14. Lunokhod 1 roams the Moon

    ≈ 10 months

  15. Venera 7 lands on Venus

  16. Mariner 9

    ≈ 1 year, 5 months · Launch Complex 36, Cape Canaveral

  17. Mariner 9 enters orbit around Mars

  18. Mars 3 lands, and falls silent

  19. Pioneer 10

    ≈ 30 years, 10 months · Launch Complex 36, Cape Canaveral

  20. Pioneer 11

    ≈ 22 years, 5 months · Launch Complex 36, Cape Canaveral

  21. Mariner 10

    ≈ 1 year, 4 months · Launch Complex 36, Cape Canaveral

  22. Pioneer 10 reaches Jupiter

  23. Mariner 10 flies past Mercury

  24. Viking 1

    ≈ 7 years, 2 months · Launch Complex 41, Cape Canaveral

  25. Venera 9 photographs the surface of Venus

  26. Viking 1 lands on Chryse Planitia

  27. Voyager 2

    Launch Complex 41, Cape Canaveral

  28. Voyager 1

    Launch Complex 41, Cape Canaveral

  29. NASA’s eleven-year gap

    ≈ 10 years, 8 months

  30. Voyager 1 at Jupiter

  31. Voyager 2 at Jupiter

  32. Voyager 1 at Saturn

  33. Voyager 2 at Saturn

  34. Venera 13 sends colour pictures from Venus

  35. Vega 1

    ≈ 2 years, 1 month · Baikonur Cosmodrome

  36. Sakigake, Japan’s first probe beyond Earth

    Kagoshima Space Center, Uchinoura

  37. Giotto

    ≈ 7 years · Guiana Space Centre, Kourou

  38. Voyager 2 at Uranus

  39. Vega 1 meets Halley’s Comet

  40. Giotto flies into Halley’s Comet

  41. Magellan

    ≈ 5 years, 5 months · Launch Complex 39B, Kennedy Space Center

  42. Voyager 2 at Neptune

  43. Galileo

    ≈ 13 years, 11 months · Launch Complex 39B, Kennedy Space Center

  44. Pale Blue Dot

  45. Ulysses

    ≈ 18 years, 8 months · Launch Complex 39B, Kennedy Space Center

  46. “Faster, better, cheaper”

    ≈ 7 years, 11 months

  47. Galileo finds a moon around an asteroid

  48. Shoemaker–Levy 9 hits Jupiter

    6 days

  49. NEAR Shoemaker

    ≈ 5 years · Launch Complex 17, Cape Canaveral

  50. Mars Pathfinder

    ≈ 9 months, 27 days · Launch Complex 17, Cape Canaveral

  51. An unbroken robotic watch on Mars

  52. Pathfinder bounces onto Mars

  53. Cassini–Huygens

    ≈ 19 years, 11 months · Launch Complex 40, Cape Canaveral

  54. Mars Climate Orbiter lost to a units mix-up

  55. Hayabusa

    ≈ 7 years, 1 month · Kagoshima Space Center, Uchinoura

  56. Mars Express

    Baikonur Cosmodrome

  57. Opportunity

    ≈ 15 years, 7 months · Launch Complex 17, Cape Canaveral

  58. Beagle 2 falls silent

  59. Opportunity lands in a crater

  60. Rosetta

    ≈ 12 years, 7 months · Guiana Space Centre, Kourou

  61. Cassini enters orbit around Saturn

  62. MESSENGER

    ≈ 10 years, 8 months · Launch Complex 17, Cape Canaveral

  63. Huygens lands on Titan

  64. Deep Impact hits a comet

  65. Stardust brings comet dust to Utah

    Utah Test and Training Range, near Dugway

  66. New Horizons

    Launch Complex 41, Cape Canaveral

  67. The IAU demotes Pluto

    Prague Congress Centre

  68. The new race to the Moon

  69. Dawn

    ≈ 11 years · Launch Complex 17, Cape Canaveral

  70. Chandrayaan-1

    ≈ 10 months, 10 days · Satish Dhawan Space Centre, Sriharikota

  71. Akatsuki

    ≈ 15 years, 4 months · Yoshinobu Launch Complex, Tanegashima Space Center

  72. Hayabusa’s capsule lands at Woomera

    Woomera Prohibited Area, South Australia

  73. Juno

    Launch Complex 41, Cape Canaveral

  74. Curiosity

    Launch Complex 41, Cape Canaveral

  75. Curiosity lands in Gale Crater

    Jet Propulsion Laboratory, Pasadena

  76. Voyager 1 leaves the heliosphere

  77. Mangalyaan, India’s Mars Orbiter Mission

    ≈ 8 years, 5 months · Satish Dhawan Space Centre, Sriharikota

  78. Chang’e 3 lands on the Moon

  79. Rosetta wakes up

    European Space Operations Centre, Darmstadt

  80. Mangalyaan reaches Mars

    ISRO Telemetry, Tracking and Command Network, Bengaluru

  81. Philae lands on a comet

  82. Hayabusa2

    Yoshinobu Launch Complex, Tanegashima Space Center

  83. New Horizons flies past Pluto

  84. Cassini flies through Enceladus’s plume

  85. Akatsuki reaches Venus at the second try

  86. Juno enters orbit around Jupiter

  87. OSIRIS-REx

    Launch Complex 41, Cape Canaveral

  88. Cassini’s Grand Finale begins

  89. Parker Solar Probe

    Space Launch Complex 37, Cape Canaveral

  90. BepiColombo

    Guiana Space Centre, Kourou

  91. Voyager 2 leaves the heliosphere

  92. New Horizons flies past Arrokoth

  93. Chang’e 4 lands on the far side of the Moon

  94. Tianwen-1

    Wenchang Space Launch Site, Hainan

  95. Perseverance

    Launch Complex 41, Cape Canaveral

  96. Chang’e 5

    ≈ 22 days, 21 hours · Wenchang Space Launch Site, Hainan

  97. Hayabusa2’s capsule lands in the outback

    Woomera Prohibited Area, South Australia

  98. Hope, the UAE’s orbiter, reaches Mars

  99. Ingenuity flies on Mars

  100. Zhurong lands on Utopia Planitia

  101. James Webb Space Telescope

    Guiana Space Centre, Kourou

  102. Webb reaches its post beyond the Moon

  103. Webb sees Neptune’s rings

  104. DART knocks an asteroid off course

  105. Juice

    Guiana Space Centre, Kourou

  106. Chandrayaan-3

    ≈ 1 month, 22 days · Satish Dhawan Space Centre, Sriharikota

  107. Vikram lands near the lunar south pole

  108. OSIRIS-REx drops Bennu at Utah

    Utah Test and Training Range, near Dugway

  109. SLIM lands on its nose

  110. JPL talks Voyager 1 back to health

    Jet Propulsion Laboratory, Pasadena

  111. Chang’e 6 brings back the far side

    Siziwang Banner, Inner Mongolia

  112. Europa Clipper

    Launch Complex 39A, Kennedy Space Center

  113. Parker skims the Sun