Star system

HIP 118321︎

Economy
High Tech / Extraction
Government
Corporate
Allegiance
Empire
Star type
Class G star Scoopable
Coordinates
79.31 / -136.81 / 70.47
Permit required
No

  • ︎ HIP 118321 A - Class G star

    Body distance
    -

    Solar masses
    0.8438
    Solar radius
    0.9021

  • ︎ HIP 118321 BC 1 - High metal content world Landable

    Body distance
    225 Ls

    Earth masses
    0.0571
    Radius
    2,485 km
    Gravity
    0.38 g
    Surface temperature
    732 K (459°C/858°F)
    Surface pressure
    0.00 atm
    Volcanism
    Atmosphere
    Terraforming

    ︎ Ruthenium: 1.4%︎ Mercury: 1.0%︎ Tin: 1.4%︎ Germanium: 4.6%︎ Manganese: 9.2%︎ Vanadium: 5.5%︎ Carbon: 13.3%︎ Iron: 22.4%︎ Nickel: 16.9%︎ Phosphorus: 8.5%︎ Sulphur: 15.8%

    • ︎ HIP 118321 BC 1 a - Rocky body Landable

      Body distance
      241 Ls

      Earth masses
      0.0004
      Radius
      526 km
      Gravity
      0.06 g
      Surface temperature
      732 K (459°C/858°F)
      Surface pressure
      0.00 atm
      Volcanism
      Major Silicate vapour geysers
      Atmosphere
      Terraforming

      ︎ Yttrium: 1.2%︎ Molybdenum: 1.3%︎ Niobium: 1.4%︎ Arsenic: 2.4%︎ Chromium: 9.2%︎ Vanadium: 5.0%︎ Carbon: 15.4%︎ Iron: 20.5%︎ Nickel: 15.5%︎ Phosphorus: 9.8%︎ Sulphur: 18.3%

  • ︎ HIP 118321 C - Class L star (brown dwarf)

    Body distance
    231 Ls

    Solar masses
    0.1641
    Solar radius
    0.3358

  • ︎ HIP 118321 B - Class M star

    Body distance
    233 Ls

    Solar masses
    0.3594
    Solar radius
    0.4965

  • ︎ HIP 118321 ABC 2 - Icy body

    Body distance
    1,539 Ls

    Earth masses
    1.6452
    Radius
    9,034 km
    Gravity
    0.82 g
    Surface temperature
    136 K (-137°C/-215°F)
    Surface pressure
    149.36 atm
    Volcanism
    Major Water geysers
    Atmosphere
    Thick Argon-rich
    Terraforming

  • ︎ HIP 118321 ABC 1 - Gas giant with water-based life

    Body distance
    1,559 Ls
    Ring/belt type
    Metallic (Depleted)
    Metal rich (Depleted)

    Earth masses
    470.3240
    Radius
    75,091 km
    Gravity
    3.39 g
    Surface temperature
    185 K (-88°C/-126°F)
    Surface pressure
    0.00 atm
    Volcanism
    Atmosphere
    Terraforming

    • ︎ HIP 118321 ABC 1 e - Rocky body Landable

      Body distance
      1,493 Ls

      Earth masses
      0.0021
      Radius
      903 km
      Gravity
      0.11 g
      Surface temperature
      134 K (-139°C/-218°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      ︎ Yttrium: 1.1%︎ Molybdenum: 1.2%︎ Tin: 1.1%︎ Chromium: 8.5%︎ Germanium: 5.4%︎ Zinc: 5.2%︎ Carbon: 15.6%︎ Iron: 19.0%︎ Nickel: 14.4%︎ Phosphorus: 10.0%︎ Sulphur: 18.5%

    • ︎ HIP 118321 ABC 1 c - Rocky body

      Body distance
      1,536 Ls

      Earth masses
      0.0015
      Radius
      804 km
      Gravity
      0.09 g
      Surface temperature
      245 K (-29°C/-19°F)
      Surface pressure
      1.65 atm
      Volcanism
      Minor Rocky magma
      Atmosphere
      Carbon dioxide
      Terraforming

    • ︎ HIP 118321 ABC 1 d - Rocky body

      Body distance
      1,537 Ls

      Earth masses
      0.0029
      Radius
      1,000 km
      Gravity
      0.12 g
      Surface temperature
      254 K (-19°C/-2°F)
      Surface pressure
      2.56 atm
      Volcanism
      Atmosphere
      Carbon dioxide
      Terraforming

    • ︎ HIP 118321 ABC 1 a - Rocky body

      Body distance
      1,563 Ls

      Earth masses
      0.0011
      Radius
      716 km
      Gravity
      0.08 g
      Surface temperature
      248 K (-25°C/-12°F)
      Surface pressure
      1.30 atm
      Volcanism
      Major Silicate vapour geysers
      Atmosphere
      Carbon dioxide
      Terraforming

    • ︎ HIP 118321 ABC 1 b - Rocky body

      Body distance
      1,563 Ls

      Earth masses
      0.0014
      Radius
      784 km
      Gravity
      0.09 g
      Surface temperature
      248 K (-25°C/-12°F)
      Surface pressure
      1.56 atm
      Volcanism
      Minor Metallic magma
      Atmosphere
      Carbon dioxide
      Terraforming

    • ︎ HIP 118321 ABC 1 f - Rocky body Landable

      Body distance
      1,602 Ls

      Earth masses
      0.0023
      Radius
      921 km
      Gravity
      0.11 g
      Surface temperature
      132 K (-141°C/-221°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      ︎ Yttrium: 1.2%︎ Mercury: 0.9%︎ Niobium: 1.4%︎ Germanium: 5.7%︎ Vanadium: 4.9%︎ Zinc: 5.4%︎ Carbon: 16.2%︎ Iron: 19.8%︎ Nickel: 15.0%︎ Phosphorus: 10.4%︎ Sulphur: 19.3%

  • ︎ HIP 118321 ABC 3 - Class III gas giant

    Body distance
    2,023 Ls

    Earth masses
    2,033.0600
    Radius
    72,924 km
    Gravity
    15.54 g
    Surface temperature
    518 K (245°C/472°F)
    Surface pressure
    0.00 atm
    Volcanism
    Atmosphere
    Terraforming

    • ︎ HIP 118321 ABC 3 b - Rocky body Landable

      Body distance
      2,013 Ls

      Earth masses
      0.0021
      Radius
      893 km
      Gravity
      0.11 g
      Surface temperature
      160 K (-113°C/-172°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      ︎ Selenium: 3.1%︎ Yttrium: 1.2%︎ Molybdenum: 1.3%︎ Niobium: 1.4%︎ Vanadium: 5.0%︎ Zinc: 5.5%︎ Carbon: 16.6%︎ Iron: 20.3%︎ Nickel: 15.3%︎ Phosphorus: 10.6%︎ Sulphur: 19.7%

    • ︎ HIP 118321 ABC 3 c - Rocky body Landable

      Body distance
      2,015 Ls

      Earth masses
      0.0017
      Radius
      838 km
      Gravity
      0.10 g
      Surface temperature
      154 K (-119°C/-182°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      ︎ Tellurium: 1.5%︎ Cadmium: 1.6%︎ Tungsten: 1.1%︎ Arsenic: 2.6%︎ Vanadium: 5.0%︎ Zinc: 5.5%︎ Carbon: 16.6%︎ Iron: 20.3%︎ Nickel: 15.3%︎ Phosphorus: 10.7%︎ Sulphur: 19.8%

    • ︎ HIP 118321 ABC 3 d - Rocky body Landable

      Body distance
      2,016 Ls

      Earth masses
      0.0014
      Radius
      782 km
      Gravity
      0.09 g
      Surface temperature
      165 K (-108°C/-162°F)
      Surface pressure
      0.02 atm
      Volcanism
      Atmosphere
      Thin Carbon dioxide
      Terraforming

      ︎ Tellurium: 1.4%︎ Cadmium: 1.5%︎ Molybdenum: 1.2%︎ Chromium: 8.5%︎ Germanium: 5.4%︎ Vanadium: 4.7%︎ Carbon: 15.6%︎ Iron: 19.0%︎ Nickel: 14.3%︎ Phosphorus: 10.0%︎ Sulphur: 18.5%

    • ︎ HIP 118321 ABC 3 e - Rocky body Landable

      Body distance
      2,024 Ls

      Earth masses
      0.0018
      Radius
      855 km
      Gravity
      0.10 g
      Surface temperature
      162 K (-111°C/-167°F)
      Surface pressure
      0.02 atm
      Volcanism
      Atmosphere
      Thin Carbon dioxide
      Terraforming

      ︎ Technetium: 0.7%︎ Cadmium: 1.5%︎ Tin: 1.1%︎ Chromium: 8.6%︎ Germanium: 5.4%︎ Zinc: 5.2%︎ Carbon: 15.6%︎ Iron: 19.0%︎ Nickel: 14.4%︎ Phosphorus: 10.0%︎ Sulphur: 18.5%

    • ︎ HIP 118321 ABC 3 a - Rocky body Landable

      Body distance
      2,027 Ls

      Earth masses
      0.0008
      Radius
      664 km
      Gravity
      0.08 g
      Surface temperature
      168 K (-105°C/-158°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      ︎ Selenium: 2.9%︎ Tellurium: 1.4%︎ Cadmium: 1.5%︎ Molybdenum: 1.2%︎ Chromium: 8.5%︎ Manganese: 7.8%︎ Carbon: 15.5%︎ Iron: 18.8%︎ Nickel: 14.2%︎ Phosphorus: 9.9%︎ Sulphur: 18.4%

    • ︎ HIP 118321 ABC 3 f - Rocky body Landable

      Body distance
      2,033 Ls

      Earth masses
      0.0017
      Radius
      843 km
      Gravity
      0.10 g
      Surface temperature
      134 K (-140°C/-219°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      ︎ Selenium: 3.1%︎ Yttrium: 1.2%︎ Cadmium: 1.6%︎ Molybdenum: 1.3%︎ Germanium: 5.7%︎ Zinc: 5.4%︎ Carbon: 16.4%︎ Iron: 20.0%︎ Nickel: 15.2%︎ Phosphorus: 10.5%︎ Sulphur: 19.6%

    • ︎ HIP 118321 ABC 3 g - Rocky body Landable

      Body distance
      2,056 Ls

      Earth masses
      0.0014
      Radius
      789 km
      Gravity
      0.09 g
      Surface temperature
      134 K (-140°C/-219°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      ︎ Selenium: 3.0%︎ Tellurium: 1.5%︎ Cadmium: 1.5%︎ Niobium: 1.4%︎ Arsenic: 2.5%︎ Chromium: 8.9%︎ Carbon: 16.3%︎ Iron: 19.9%︎ Nickel: 15.0%︎ Phosphorus: 10.4%︎ Sulphur: 19.4%

  • ︎ HIP 118321 ABC 5 - Icy body

    Body distance
    2,685 Ls

    Earth masses
    7.9991
    Radius
    14,009 km
    Gravity
    1.66 g
    Surface temperature
    564 K (291°C/556°F)
    Surface pressure
    32,836.42 atm
    Volcanism
    Water geysers
    Atmosphere
    Hot Thick Methane-rich
    Terraforming

  • ︎ HIP 118321 ABC 4 - Class III gas giant

    Body distance
    2,750 Ls
    Ring/belt type
    Rocky (Depleted)

    Earth masses
    1,155.4000
    Radius
    76,475 km
    Gravity
    8.03 g
    Surface temperature
    295 K (21°C/71°F)
    Surface pressure
    0.00 atm
    Volcanism
    Atmosphere
    Terraforming

  • ︎ HIP 118321 ABC 7 - Icy body

    Body distance
    3,735 Ls

    Earth masses
    8.6415
    Radius
    14,291 km
    Gravity
    1.72 g
    Surface temperature
    75 K (-198°C/-324°F)
    Surface pressure
    1.55 atm
    Volcanism
    Water geysers
    Atmosphere
    Helium
    Terraforming

  • ︎ HIP 118321 ABC 6 - Class I gas giant

    Body distance
    3,796 Ls
    Ring/belt type
    Icy (Depleted)
    Metal rich (Depleted)

    Earth masses
    128.2440
    Radius
    56,453 km
    Gravity
    1.64 g
    Surface temperature
    93 K (-181°C/-293°F)
    Surface pressure
    0.00 atm
    Volcanism
    Atmosphere
    Terraforming

    • ︎ HIP 118321 ABC 6 a - Icy body Landable

      Body distance
      3,729 Ls

      Earth masses
      0.0022
      Radius
      1,151 km
      Gravity
      0.07 g
      Surface temperature
      76 K (-197°C/-323°F)
      Surface pressure
      0.00 atm
      Volcanism
      Major Water geysers
      Atmosphere
      Terraforming

      ︎ Selenium: 4.3%︎ Yttrium: 0.7%︎ Niobium: 0.8%︎ Tungsten: 0.7%︎ Chromium: 5.5%︎ Zirconium: 1.4%︎ Carbon: 23.0%︎ Iron: 12.3%︎ Nickel: 9.3%︎ Phosphorus: 14.7%︎ Sulphur: 27.3%

    • ︎ HIP 118321 ABC 6 b - Icy body Landable

      Body distance
      3,729 Ls

      Earth masses
      0.0028
      Radius
      1,240 km
      Gravity
      0.07 g
      Surface temperature
      75 K (-198°C/-325°F)
      Surface pressure
      0.00 atm
      Volcanism
      Major Water geysers
      Atmosphere
      Terraforming

      ︎ Antimony: 0.8%︎ Selenium: 4.4%︎ Cadmium: 1.0%︎ Tin: 0.7%︎ Germanium: 3.6%︎ Zirconium: 1.5%︎ Carbon: 23.4%︎ Iron: 12.5%︎ Nickel: 9.4%︎ Phosphorus: 15.0%︎ Sulphur: 27.8%

    • ︎ HIP 118321 ABC 6 d - Icy body Landable

      Body distance
      3,757 Ls

      Earth masses
      0.0019
      Radius
      1,094 km
      Gravity
      0.07 g
      Surface temperature
      74 K (-199°C/-326°F)
      Surface pressure
      0.00 atm
      Volcanism
      Major Water magma
      Atmosphere
      Terraforming

      ︎ Ruthenium: 0.8%︎ Cadmium: 0.9%︎ Tin: 0.7%︎ Manganese: 5.0%︎ Vanadium: 3.0%︎ Zinc: 3.3%︎ Carbon: 22.9%︎ Iron: 12.2%︎ Nickel: 9.2%︎ Phosphorus: 14.7%︎ Sulphur: 27.2%

    • ︎ HIP 118321 ABC 6 c - Icy body Landable

      Body distance
      3,824 Ls

      Earth masses
      0.0022
      Radius
      1,147 km
      Gravity
      0.07 g
      Surface temperature
      74 K (-199°C/-326°F)
      Surface pressure
      0.00 atm
      Volcanism
      Major Water magma
      Atmosphere
      Terraforming

      ︎ Polonium: 0.3%︎ Niobium: 0.8%︎ Tungsten: 0.7%︎ Chromium: 5.4%︎ Germanium: 3.4%︎ Manganese: 4.9%︎ Carbon: 22.4%︎ Iron: 12.0%︎ Nickel: 9.1%︎ Phosphorus: 14.4%︎ Sulphur: 26.7%

  • ︎ HIP 118321 ABC 8 - Icy body

    Body distance
    16,073 Ls

    Earth masses
    5.7741
    Radius
    12,473 km
    Gravity
    1.51 g
    Surface temperature
    41 K (-232°C/-386°F)
    Surface pressure
    1.01 atm
    Volcanism
    Major Water geysers
    Atmosphere
    Helium
    Terraforming

  • ︎ HIP 118321 D - Class M star

    Body distance
    142,677 Ls

    Solar masses
    0.3984
    Solar radius
    0.5345

    • ︎ HIP 118321 D 4 - Class I gas giant

      Body distance
      141,577 Ls

      Earth masses
      298.5340
      Radius
      71,329 km
      Gravity
      2.39 g
      Surface temperature
      89 K (-185°C/-300°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      • ︎ HIP 118321 D 4 f - Icy body Landable

        Body distance
        141,480 Ls

        Earth masses
        0.0033
        Radius
        1,315 km
        Gravity
        0.08 g
        Surface temperature
        50 K (-223°C/-369°F)
        Surface pressure
        0.00 atm
        Volcanism
        Atmosphere
        Terraforming

        ︎ Ruthenium: 0.7%︎ Selenium: 4.1%︎ Cadmium: 0.9%︎ Niobium: 0.8%︎ Chromium: 5.3%︎ Manganese: 4.9%︎ Carbon: 22.1%︎ Iron: 11.8%︎ Nickel: 8.9%︎ Phosphorus: 14.2%︎ Sulphur: 26.3%

      • ︎ HIP 118321 D 4 d - Icy body Landable

        Body distance
        141,564 Ls

        Earth masses
        0.0037
        Radius
        1,363 km
        Gravity
        0.08 g
        Surface temperature
        53 K (-220°C/-365°F)
        Surface pressure
        0.00 atm
        Volcanism
        Water geysers
        Atmosphere
        Terraforming

        ︎ Ruthenium: 0.8%︎ Cadmium: 0.9%︎ Niobium: 0.8%︎ Chromium: 5.5%︎ Vanadium: 3.0%︎ Zinc: 3.3%︎ Carbon: 22.8%︎ Iron: 12.1%︎ Nickel: 9.2%︎ Phosphorus: 14.6%︎ Sulphur: 27.1%

      • ︎ HIP 118321 D 4 e - Icy body Landable

        Body distance
        141,566 Ls

        Earth masses
        0.0024
        Radius
        1,178 km
        Gravity
        0.07 g
        Surface temperature
        51 K (-222°C/-367°F)
        Surface pressure
        0.00 atm
        Volcanism
        Atmosphere
        Thin Argon
        Terraforming

        ︎ Ruthenium: 0.8%︎ Selenium: 4.4%︎ Mercury: 0.5%︎ Molybdenum: 0.8%︎ Arsenic: 1.6%︎ Germanium: 3.6%︎ Carbon: 23.4%︎ Iron: 12.5%︎ Nickel: 9.5%︎ Phosphorus: 15.0%︎ Sulphur: 27.9%

      • ︎ HIP 118321 D 4 b - Icy body Landable

        Body distance
        142,048 Ls

        Earth masses
        0.0047
        Radius
        1,473 km
        Gravity
        0.09 g
        Surface temperature
        54 K (-219°C/-362°F)
        Surface pressure
        0.00 atm
        Volcanism
        Carbon dioxide geysers
        Atmosphere
        Terraforming

        ︎ Antimony: 0.7%︎ Selenium: 4.2%︎ Molybdenum: 0.8%︎ Niobium: 0.8%︎ Manganese: 5.0%︎ Vanadium: 3.0%︎ Carbon: 22.7%︎ Iron: 12.1%︎ Nickel: 9.2%︎ Phosphorus: 14.5%︎ Sulphur: 27.0%

      • ︎ HIP 118321 D 4 a - Icy body Landable

        Body distance
        143,764 Ls

        Earth masses
        0.0101
        Radius
        1,891 km
        Gravity
        0.11 g
        Surface temperature
        56 K (-218°C/-360°F)
        Surface pressure
        0.00 atm
        Volcanism
        Major Water geysers
        Atmosphere
        Terraforming

        ︎ Ruthenium: 0.7%︎ Selenium: 4.2%︎ Molybdenum: 0.8%︎ Niobium: 0.8%︎ Germanium: 3.4%︎ Manganese: 5.0%︎ Carbon: 22.6%︎ Iron: 12.0%︎ Nickel: 9.1%︎ Phosphorus: 14.5%︎ Sulphur: 26.8%

      • ︎ HIP 118321 D 4 c - Icy body Landable

        Body distance
        143,764 Ls

        Earth masses
        0.0083
        Radius
        1,779 km
        Gravity
        0.11 g
        Surface temperature
        53 K (-220°C/-365°F)
        Surface pressure
        0.00 atm
        Volcanism
        Major Water geysers
        Atmosphere
        Terraforming

        ︎ Antimony: 0.7%︎ Selenium: 4.2%︎ Molybdenum: 0.8%︎ Tin: 0.7%︎ Chromium: 5.4%︎ Germanium: 3.4%︎ Carbon: 22.5%︎ Iron: 12.0%︎ Nickel: 9.1%︎ Phosphorus: 14.4%︎ Sulphur: 26.8%

    • ︎ HIP 118321 D 3 - Class I gas giant

      Body distance
      141,782 Ls
      Ring/belt type
      Icy (Depleted)
      Rocky (Depleted)

      Earth masses
      18.9730
      Radius
      38,026 km
      Gravity
      0.53 g
      Surface temperature
      70 K (-204°C/-334°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      • ︎ HIP 118321 D 3 a - Icy body

        Body distance
        144,198 Ls

        Earth masses
        0.0003
        Radius
        578 km
        Gravity
        0.03 g
        Surface temperature
        146 K (-127°C/-196°F)
        Surface pressure
        5.51 atm
        Volcanism
        Major Water geysers
        Atmosphere
        Thick Methane
        Terraforming

    • ︎ HIP 118321 D 1 - Gas giant with ammonia-based life

      Body distance
      142,629 Ls
      Ring/belt type
      Icy (Depleted)
      Rocky (Depleted)

      Earth masses
      322.5520
      Radius
      71,981 km
      Gravity
      2.53 g
      Surface temperature
      116 K (-157°C/-251°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      • ︎ HIP 118321 D 1 a - Icy body Landable

        Body distance
        142,256 Ls

        Earth masses
        0.0092
        Radius
        1,854 km
        Gravity
        0.11 g
        Surface temperature
        79 K (-194°C/-317°F)
        Surface pressure
        0.00 atm
        Volcanism
        Major Water geysers
        Atmosphere
        Terraforming

        ︎ Tellurium: 0.9%︎ Tin: 0.7%︎ Tungsten: 0.6%︎ Arsenic: 1.5%︎ Manganese: 4.8%︎ Vanadium: 2.9%︎ Carbon: 24.0%︎ Iron: 11.7%︎ Nickel: 8.9%︎ Phosphorus: 15.4%︎ Sulphur: 28.6%

    • ︎ HIP 118321 D 5 - Icy body

      Body distance
      143,749 Ls

      Earth masses
      4.4244
      Radius
      11,960 km
      Gravity
      1.26 g
      Surface temperature
      49 K (-224°C/-371°F)
      Surface pressure
      0.82 atm
      Volcanism
      Major Water geysers
      Atmosphere
      Helium
      Terraforming

    • ︎ HIP 118321 D 2 - Gas giant with ammonia-based life

      Body distance
      144,382 Ls
      Ring/belt type
      Icy (Depleted)

      Earth masses
      325.6080
      Radius
      72,393 km
      Gravity
      2.52 g
      Surface temperature
      108 K (-166°C/-266°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      • ︎ HIP 118321 D 2 a - Icy body

        Body distance
        141,793 Ls

        Earth masses
        0.0031
        Radius
        1,288 km
        Gravity
        0.08 g
        Surface temperature
        201 K (-72°C/-97°F)
        Surface pressure
        28.26 atm
        Volcanism
        Major Water geysers
        Atmosphere
        Thick Methane
        Terraforming

      • ︎ HIP 118321 D 2 b - Icy body

        Body distance
        144,154 Ls

        Earth masses
        0.0023
        Radius
        1,163 km
        Gravity
        0.07 g
        Surface temperature
        149 K (-124°C/-191°F)
        Surface pressure
        3.88 atm
        Volcanism
        Atmosphere
        Methane
        Terraforming

    • ︎ HIP 118321 D 6 - Icy body

      Body distance
      147,581 Ls

      Earth masses
      13.5656
      Radius
      16,129 km
      Gravity
      2.12 g
      Surface temperature
      43 K (-230°C/-382°F)
      Surface pressure
      2.32 atm
      Volcanism
      Water geysers
      Atmosphere
      Helium
      Terraforming