Star system
HIP 110187
Economy
Government
Allegiance
Independent
Star type
Class G star Scoopable
Coordinates
-149.78 / -211 / 103.13
Permit required
No
Powerplay
Unoccupied
Powers
︎ HIP 110187 A - Class G star
Body distance-Solar masses1.1797Solar radius1.0822︎ HIP 110187 A 1 e - Rocky body Landable
Body distance954 LsEarth masses0.0014Radius790 kmGravity0.09 gSurface temperature211 K (-62°C/-79°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 1.2%︎ Cadmium: 1.6%︎ Niobium: 1.4%︎ Arsenic: 2.6%︎ Manganese: 8.4%︎ Zirconium: 2.4%︎ Carbon: 16.6%︎ Iron: 20.3%︎ Nickel: 15.3%︎ Phosphorus: 10.6%︎ Sulphur: 19.7%︎ HIP 110187 A 1 a - Rocky body Landable
Body distance964 LsEarth masses0.0010Radius698 kmGravity0.08 gSurface temperature213 K (-60°C/-76°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.5%︎ Mercury: 0.9%︎ Tungsten: 1.1%︎ Arsenic: 2.5%︎ Chromium: 8.8%︎ Zinc: 5.3%︎ Carbon: 16.0%︎ Iron: 19.7%︎ Nickel: 14.9%︎ Phosphorus: 10.3%︎ Sulphur: 19.1%︎ HIP 110187 A 1 b - Rocky body Landable
Body distance964 LsEarth masses0.0003Radius492 kmGravity0.06 gSurface temperature213 K (-60°C/-77°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.4%︎ Molybdenum: 1.2%︎ Tungsten: 1.0%︎ Chromium: 8.3%︎ Germanium: 5.3%︎ Manganese: 7.6%︎ Carbon: 15.1%︎ Iron: 18.5%︎ Nickel: 14.0%︎ Phosphorus: 9.7%︎ Sulphur: 18.0%︎ HIP 110187 A 1 d - Rocky body Landable
Body distance966 LsEarth masses0.0013Radius761 kmGravity0.09 gSurface temperature212 K (-62°C/-79°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Technetium: 0.7%︎ Mercury: 0.9%︎ Tungsten: 1.1%︎ Arsenic: 2.5%︎ Chromium: 8.9%︎ Germanium: 5.7%︎ Carbon: 16.1%︎ Iron: 19.7%︎ Nickel: 14.9%︎ Phosphorus: 10.3%︎ Sulphur: 19.2%︎ HIP 110187 A 1 c - Rocky body Landable
Body distance966 LsEarth masses0.0013Radius765 kmGravity0.09 gSurface temperature212 K (-61°C/-78°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.4%︎ Niobium: 1.3%︎ Tin: 1.1%︎ Manganese: 7.9%︎ Vanadium: 4.7%︎ Zinc: 5.2%︎ Carbon: 15.7%︎ Iron: 19.2%︎ Nickel: 14.5%︎ Phosphorus: 10.1%︎ Sulphur: 18.7%︎ HIP 110187 A 1 - Gas giant with water-based life
Body distance967 LsRing/belt typeMetal rich (Pristine)Earth masses160.1660Radius65,026 kmGravity1.54 gSurface temperature223 K (-50°C/-59°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 110187 A 2 f - Rocky body Landable
Body distance1,219 LsEarth masses0.0002Radius394 kmGravity0.05 gSurface temperature189 K (-85°C/-120°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Selenium: 2.9%︎ Tellurium: 1.4%︎ Mercury: 0.8%︎ Tin: 1.1%︎ Chromium: 8.5%︎ Manganese: 7.8%︎ Carbon: 15.5%︎ Iron: 19.0%︎ Nickel: 14.4%︎ Phosphorus: 9.9%︎ Sulphur: 18.5%︎ HIP 110187 A 2 d - Rocky body Landable
Body distance1,222 LsEarth masses0.0002Radius414 kmGravity0.05 gSurface temperature189 K (-85°C/-120°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Polonium: 0.5%︎ Niobium: 1.4%︎ Tungsten: 1.1%︎ Arsenic: 2.5%︎ Chromium: 8.9%︎ Vanadium: 4.9%︎ Carbon: 16.2%︎ Iron: 19.8%︎ Nickel: 15.0%︎ Phosphorus: 10.4%︎ Sulphur: 19.3%︎ HIP 110187 A 2 c - Rocky body Landable
Body distance1,222 LsEarth masses0.0002Radius409 kmGravity0.05 gSurface temperature189 K (-85°C/-120°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Technetium: 0.7%︎ Cadmium: 1.5%︎ Molybdenum: 1.3%︎ Arsenic: 2.6%︎ Manganese: 8.2%︎ Vanadium: 4.9%︎ Carbon: 16.2%︎ Iron: 19.9%︎ Nickel: 15.0%︎ Phosphorus: 10.4%︎ Sulphur: 19.3%︎ HIP 110187 A 2 - Class II gas giant
Body distance1,223 LsRing/belt typeMetal rich (Pristine)
Rocky (Pristine)Earth masses10.5322Radius22,187 kmGravity0.87 gSurface temperature186 K (-87°C/-125°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 110187 A 2 b - Rocky body Landable
Body distance1,224 LsEarth masses0.0002Radius426 kmGravity0.05 gSurface temperature189 K (-85°C/-120°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.1%︎ Cadmium: 1.4%︎ Niobium: 1.3%︎ Chromium: 8.3%︎ Manganese: 7.6%︎ Zinc: 5.0%︎ Carbon: 15.1%︎ Iron: 18.5%︎ Nickel: 14.0%︎ Phosphorus: 9.7%︎ Sulphur: 18.0%︎ HIP 110187 A 2 a - Rocky body Landable
Body distance1,224 LsEarth masses0.0002Radius424 kmGravity0.05 gSurface temperature189 K (-85°C/-120°F)Surface pressure0.00 atmVolcanismMinor Rocky magmaAtmosphereTerraforming︎ Selenium: 3.1%︎ Tellurium: 1.5%︎ Mercury: 0.9%︎ Niobium: 1.4%︎ Germanium: 5.8%︎ Zinc: 5.5%︎ Carbon: 16.5%︎ Iron: 20.1%︎ Nickel: 15.2%︎ Phosphorus: 10.5%︎ Sulphur: 19.6%︎ HIP 110187 A 2 e - Rocky body Landable
Body distance1,224 LsEarth masses0.0002Radius440 kmGravity0.05 gSurface temperature189 K (-85°C/-120°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Selenium: 3.0%︎ Yttrium: 1.2%︎ Molybdenum: 1.3%︎ Tungsten: 1.1%︎ Chromium: 8.8%︎ Zinc: 5.3%︎ Carbon: 16.0%︎ Iron: 19.5%︎ Nickel: 14.8%︎ Phosphorus: 10.2%︎ Sulphur: 19.0%︎ HIP 110187 A 4 - Water world
Body distance1,524 LsEarth masses7.1319Radius13,580 kmGravity1.57 gSurface temperature332 K (59°C/139°F)Surface pressure2,800.12 atmVolcanismMajor Water geysersAtmosphereThick Argon-richTerraforming︎ HIP 110187 A 3 - Class II gas giant
Body distance1,574 LsRing/belt typeMetal rich (Pristine)Earth masses265.6510Radius69,049 kmGravity2.26 gSurface temperature197 K (-77°C/-106°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 110187 A 3 a - Icy body Landable
Body distance1,575 LsEarth masses0.0067Radius1,640 kmGravity0.10 gSurface temperature157 K (-116°C/-177°F)Surface pressure0.00 atmVolcanismMajor Water geysersAtmosphereTerraforming︎ Selenium: 4.0%︎ Tellurium: 0.9%︎ Niobium: 0.8%︎ Tin: 0.7%︎ Chromium: 5.5%︎ Manganese: 5.1%︎ Carbon: 21.6%︎ Iron: 12.3%︎ Nickel: 9.3%︎ Phosphorus: 13.8%︎ Sulphur: 25.7%︎ HIP 110187 A 5 a - Icy body Landable
Body distance2,277 LsEarth masses0.0002Radius557 kmGravity0.03 gSurface temperature126 K (-147°C/-233°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Selenium: 4.3%︎ Yttrium: 0.7%︎ Mercury: 0.5%︎ Molybdenum: 0.8%︎ Germanium: 3.6%︎ Vanadium: 3.0%︎ Carbon: 23.1%︎ Iron: 12.4%︎ Nickel: 9.4%︎ Phosphorus: 14.8%︎ Sulphur: 27.4%︎ HIP 110187 A 5 - Water giant
Body distance2,279 LsRing/belt typeIcy (Pristine)Earth masses32.4622Radius20,299 kmGravity3.20 gSurface temperature218 K (-56°C/-68°F)Surface pressure7,476,683.94 atmVolcanismAtmosphereTerraforming︎ HIP 110187 A 5 b - Icy body Landable
Body distance2,285 LsEarth masses0.0005Radius692 kmGravity0.04 gSurface temperature126 K (-147°C/-233°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 0.7%︎ Niobium: 0.8%︎ Tungsten: 0.7%︎ Chromium: 5.5%︎ Germanium: 3.5%︎ Vanadium: 3.0%︎ Carbon: 22.7%︎ Iron: 12.2%︎ Nickel: 9.2%︎ Phosphorus: 14.6%︎ Sulphur: 27.0%︎ HIP 110187 A 5 c - Icy body Landable
Body distance2,294 LsEarth masses0.0008Radius820 kmGravity0.05 gSurface temperature126 K (-147°C/-233°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 0.9%︎ Molybdenum: 0.8%︎ Tin: 0.7%︎ Chromium: 5.4%︎ Germanium: 3.4%︎ Manganese: 4.9%︎ Carbon: 22.2%︎ Iron: 11.9%︎ Nickel: 9.0%︎ Phosphorus: 14.2%︎ Sulphur: 26.4%︎ HIP 110187 B 2 e - Icy body Landable
Body distance25,405 LsEarth masses0.0105Radius1,919 kmGravity0.12 gSurface temperature107 K (-166°C/-267°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 0.8%︎ Molybdenum: 0.8%︎ Niobium: 0.8%︎ Arsenic: 1.6%︎ Germanium: 3.6%︎ Manganese: 5.1%︎ Carbon: 23.1%︎ Iron: 12.4%︎ Nickel: 9.4%︎ Phosphorus: 14.8%︎ Sulphur: 27.5%︎ HIP 110187 B 2 c a - Icy body Landable
Body distance25,411 LsEarth masses0.0004Radius642 kmGravity0.04 gSurface temperature112 K (-162°C/-259°F)Surface pressure0.00 atmVolcanismWater geysersAtmosphereTerraforming︎ Ruthenium: 0.6%︎ Selenium: 4.6%︎ Cadmium: 0.8%︎ Niobium: 0.7%︎ Germanium: 3.2%︎ Manganese: 4.0%︎ Carbon: 24.5%︎ Iron: 9.7%︎ Nickel: 7.3%︎ Phosphorus: 15.7%︎ Sulphur: 29.1%︎ HIP 110187 B 2 c - Icy body Landable
Body distance25,411 LsEarth masses0.0078Radius1,720 kmGravity0.11 gSurface temperature112 K (-162°C/-259°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.0%︎ Niobium: 0.9%︎ Tin: 0.8%︎ Chromium: 5.9%︎ Vanadium: 3.2%︎ Zirconium: 1.5%︎ Carbon: 22.5%︎ Iron: 13.1%︎ Nickel: 9.9%︎ Phosphorus: 14.4%︎ Sulphur: 26.8%︎ HIP 110187 B 2 b - Rocky body Landable
Body distance25,411 LsEarth masses0.0006Radius587 kmGravity0.07 gSurface temperature128 K (-145°C/-229°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Tellurium: 1.5%︎ Niobium: 1.3%︎ Tin: 1.2%︎ Manganese: 8.1%︎ Zinc: 5.4%︎ Zirconium: 2.3%︎ Carbon: 16.1%︎ Iron: 19.7%︎ Nickel: 14.9%︎ Phosphorus: 10.3%︎ Sulphur: 19.2%︎ HIP 110187 B 2 a - Rocky body Landable
Body distance25,411 LsEarth masses0.0006Radius607 kmGravity0.07 gSurface temperature128 K (-145°C/-229°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Technetium: 0.7%︎ Cadmium: 1.6%︎ Mercury: 0.9%︎ Germanium: 5.9%︎ Vanadium: 5.0%︎ Zirconium: 2.4%︎ Carbon: 16.8%︎ Iron: 20.5%︎ Nickel: 15.5%︎ Phosphorus: 10.7%︎ Sulphur: 19.9%︎ HIP 110187 B 2 - Class II gas giant
Body distance25,411 LsEarth masses494.6960Radius75,948 kmGravity3.49 gSurface temperature180 K (-93°C/-135°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 110187 B 2 d - Icy body Landable
Body distance25,416 LsEarth masses0.0038Radius1,358 kmGravity0.08 gSurface temperature108 K (-165°C/-265°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Selenium: 4.3%︎ Tellurium: 1.0%︎ Niobium: 0.9%︎ Tin: 0.8%︎ Germanium: 3.8%︎ Zirconium: 1.5%︎ Carbon: 22.9%︎ Iron: 13.1%︎ Nickel: 9.9%︎ Phosphorus: 14.6%︎ Sulphur: 27.2%︎ HIP 110187 B 2 f - Icy body Landable
Body distance25,420 LsEarth masses0.0105Radius1,918 kmGravity0.12 gSurface temperature105 K (-168°C/-270°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 0.7%︎ Cadmium: 0.9%︎ Molybdenum: 0.8%︎ Chromium: 5.4%︎ Manganese: 5.0%︎ Vanadium: 2.9%︎ Carbon: 22.3%︎ Iron: 12.0%︎ Nickel: 9.1%︎ Phosphorus: 14.3%︎ Sulphur: 26.6%︎ HIP 110187 B 4 e - Icy body Landable
Body distance26,293 LsEarth masses0.0005Radius707 kmGravity0.04 gSurface temperature83 K (-190°C/-310°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 0.9%︎ Niobium: 0.8%︎ Tungsten: 0.7%︎ Chromium: 5.6%︎ Germanium: 3.6%︎ Zirconium: 1.4%︎ Carbon: 23.1%︎ Iron: 12.4%︎ Nickel: 9.4%︎ Phosphorus: 14.8%︎ Sulphur: 27.4%︎ HIP 110187 B 4 d - Icy body Landable
Body distance26,296 LsEarth masses0.0016Radius1,027 kmGravity0.06 gSurface temperature83 K (-190°C/-310°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Selenium: 4.2%︎ Yttrium: 0.7%︎ Cadmium: 1.0%︎ Niobium: 0.9%︎ Germanium: 3.6%︎ Zinc: 3.4%︎ Carbon: 22.8%︎ Iron: 12.4%︎ Nickel: 9.4%︎ Phosphorus: 14.6%︎ Sulphur: 27.1%︎ HIP 110187 B 4 - Class I gas giant
Body distance26,303 LsRing/belt typeIcy (Pristine)Earth masses38.9017Radius46,237 kmGravity0.74 gSurface temperature95 K (-178°C/-289°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 110187 B 4 c - Icy body Landable
Body distance26,304 LsEarth masses0.0017Radius1,050 kmGravity0.06 gSurface temperature83 K (-190°C/-310°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Polonium: 0.3%︎ Mercury: 0.6%︎ Molybdenum: 0.8%︎ Arsenic: 1.6%︎ Germanium: 3.7%︎ Vanadium: 3.1%︎ Carbon: 23.8%︎ Iron: 12.8%︎ Nickel: 9.7%︎ Phosphorus: 15.2%︎ Sulphur: 28.3%︎ HIP 110187 B 4 b - Icy body Landable
Body distance26,304 LsEarth masses0.0002Radius556 kmGravity0.03 gSurface temperature84 K (-190°C/-309°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Selenium: 4.2%︎ Technetium: 0.4%︎ Mercury: 0.5%︎ Niobium: 0.8%︎ Manganese: 5.1%︎ Vanadium: 3.0%︎ Carbon: 22.8%︎ Iron: 12.2%︎ Nickel: 9.3%︎ Phosphorus: 14.6%︎ Sulphur: 27.1%︎ HIP 110187 B 4 a - Icy body Landable
Body distance26,304 LsEarth masses0.0006Radius747 kmGravity0.04 gSurface temperature84 K (-190°C/-309°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Yttrium: 0.7%︎ Cadmium: 0.9%︎ Molybdenum: 0.8%︎ Chromium: 5.4%︎ Germanium: 3.4%︎ Manganese: 5.0%︎ Carbon: 22.2%︎ Iron: 12.0%︎ Nickel: 9.1%︎ Phosphorus: 14.2%︎ Sulphur: 26.4%︎ HIP 110187 B - Class M star
Body distance26,412 LsSolar masses0.3906Solar radius0.5375︎ HIP 110187 B 1 - High metal content world Landable
Body distance26,413 LsEarth masses0.4196Radius4,671 kmGravity0.78 gSurface temperature850 K (577°C/1,070°F)Surface pressure0.00 atmVolcanismMinor Metallic magmaAtmosphereTerraforming︎ Yttrium: 1.3%︎ Mercury: 1.0%︎ Niobium: 1.5%︎ Chromium: 10.0%︎ Germanium: 4.6%︎ Vanadium: 5.4%︎ Carbon: 13.1%︎ Iron: 22.2%︎ Nickel: 16.8%︎ Phosphorus: 8.4%︎ Sulphur: 15.6%︎ HIP 110187 B 3 g - Icy body Landable
Body distance27,714 LsEarth masses0.0020Radius1,110 kmGravity0.07 gSurface temperature95 K (-179°C/-289°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 0.7%︎ Tin: 0.7%︎ Tungsten: 0.7%︎ Chromium: 5.6%︎ Germanium: 3.5%︎ Vanadium: 3.0%︎ Carbon: 22.6%︎ Iron: 12.4%︎ Nickel: 9.3%︎ Phosphorus: 14.5%︎ Sulphur: 26.9%︎ HIP 110187 B 3 c - Icy body Landable
Body distance27,715 LsEarth masses0.0012Radius933 kmGravity0.06 gSurface temperature97 K (-176°C/-285°F)Surface pressure0.00 atmVolcanismMajor Water geysersAtmosphereTerraforming︎ Ruthenium: 0.7%︎ Selenium: 4.1%︎ Cadmium: 0.9%︎ Niobium: 0.8%︎ Chromium: 5.3%︎ Manganese: 4.9%︎ Carbon: 22.0%︎ Iron: 11.9%︎ Nickel: 9.0%︎ Phosphorus: 14.1%︎ Sulphur: 26.2%︎ HIP 110187 B 3 d - Icy body Landable
Body distance27,715 LsEarth masses0.0005Radius723 kmGravity0.04 gSurface temperature97 K (-176°C/-285°F)Surface pressure0.00 atmVolcanismWater geysersAtmosphereTerraforming︎ Antimony: 0.7%︎ Molybdenum: 0.8%︎ Tin: 0.7%︎ Chromium: 5.4%︎ Germanium: 3.5%︎ Zinc: 3.3%︎ Carbon: 22.7%︎ Iron: 12.1%︎ Nickel: 9.2%︎ Phosphorus: 14.5%︎ Sulphur: 27.0%︎ HIP 110187 B 3 f - Icy body Landable
Body distance27,715 LsEarth masses0.0009Radius862 kmGravity0.05 gSurface temperature95 K (-178°C/-288°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Selenium: 4.3%︎ Tellurium: 0.9%︎ Cadmium: 1.0%︎ Niobium: 0.8%︎ Manganese: 5.1%︎ Zirconium: 1.4%︎ Carbon: 22.9%︎ Iron: 12.3%︎ Nickel: 9.3%︎ Phosphorus: 14.7%︎ Sulphur: 27.3%︎ HIP 110187 B 3 - Class I gas giant
Body distance27,718 LsRing/belt typeIcy (Pristine)Earth masses348.7670Radius73,528 kmGravity2.62 gSurface temperature145 K (-128°C/-199°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 110187 B 3 e - Icy body Landable
Body distance27,718 LsEarth masses0.0007Radius782 kmGravity0.05 gSurface temperature96 K (-177°C/-287°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 0.9%︎ Cadmium: 0.9%︎ Tungsten: 0.7%︎ Chromium: 5.4%︎ Manganese: 5.0%︎ Vanadium: 2.9%︎ Carbon: 22.3%︎ Iron: 12.0%︎ Nickel: 9.1%︎ Phosphorus: 14.3%︎ Sulphur: 26.5%︎ HIP 110187 B 3 b - Icy body Landable
Body distance27,719 LsEarth masses0.0007Radius780 kmGravity0.05 gSurface temperature98 K (-175°C/-283°F)Surface pressure0.00 atmVolcanismMajor Water magmaAtmosphereTerraforming︎ Selenium: 4.4%︎ Yttrium: 0.8%︎ Mercury: 0.6%︎ Tin: 0.8%︎ Arsenic: 1.6%︎ Zinc: 3.4%︎ Carbon: 23.5%︎ Iron: 12.6%︎ Nickel: 9.5%︎ Phosphorus: 15.0%︎ Sulphur: 27.9%︎ HIP 110187 B 3 a - Icy body Landable
Body distance27,719 LsEarth masses0.0002Radius555 kmGravity0.03 gSurface temperature100 K (-173°C/-280°F)Surface pressure0.00 atmVolcanismMajor Water geysersAtmosphereTerraforming︎ Selenium: 4.4%︎ Tellurium: 0.9%︎ Cadmium: 1.0%︎ Tin: 0.7%︎ Arsenic: 1.6%︎ Vanadium: 3.1%︎ Carbon: 23.4%︎ Iron: 12.6%︎ Nickel: 9.5%︎ Phosphorus: 15.0%︎ Sulphur: 27.8%︎ HIP 110187 B 5 - Icy body
Body distance27,925 LsRing/belt typeIcy (Pristine)Earth masses4.1580Radius11,750 kmGravity1.22 gSurface temperature427 K (154°C/309°F)Surface pressure17,863.51 atmVolcanismMajor Water geysersAtmosphereThick Methane-richTerraforming