47 How early was the Earth liveable for today's humans? 2014-11-16T21:05:26.967

36 Habitable moon of a gas giant: working out the sizes and distances 2015-01-05T20:37:15.170

36 Fantasy map that has minimal land at the equator. What does this mean for rainforests and the world as a whole? 2017-10-24T16:31:53.557

29 A planet illuminated by a black hole? 2019-07-25T19:20:52.320

26 Keeping an "hot eyeball planet" wet 2019-07-25T03:29:15.143

22 Can a gas giant have its own habitable zone? 2014-12-23T19:51:16.073

22 Reality Check: Habitable moon around earth-like planet 2016-08-10T20:32:20.210

22 Extremely small planet to live on 2017-02-17T12:41:41.477

22 Where would space habitats get their oxygen from? 2018-09-02T23:06:02.120

21 Why would Earth be long-term unsuitable for an advanced alien species that's already colonized it? 2019-11-22T23:14:34.947

20 Is a Jupiter-sized planet plausible in a habitable zone? 2014-11-28T15:49:12.330

20 Making a planet habitable for humanoids: The planet 2015-02-09T21:48:53.000

20 Close the door on your way out - Life lit by a blue dwarf star 2015-08-23T11:01:13.957

19 What would the consequences be of a high number of solar systems being within close proximity to one another? 2019-06-10T17:52:46.117

18 Making a planet habitable for humanoids: The star 2015-02-07T23:55:40.937

18 How small could an Earth-like planet be while still realistically being able to sustain human life? 2015-02-09T03:02:38.353

18 How could I scientifically explain a world where the surface is made out of pillars? 2018-05-20T05:46:47.290

17 Is a solar system around a black hole possible? 2018-12-03T12:25:35.343

16 How far could a planet be from its star and still be kept habitable by intense greenhouse gases? 2016-03-14T16:56:13.737

14 Could we still live if Earth's spin speed slowed down by 90%? 2015-01-07T19:49:36.570

14 How dark can a habitable planet be? 2015-05-30T18:51:06.850

14 How long after a global nuclear disaster would the world become habitable by humans again? 2016-04-04T14:12:19.900

14 How could you keep a rogue planet warm(ish)? 2016-11-26T01:32:35.597

14 Can a habitable moon rely on the magnetosphere of its parent planet for radiation protection? 2018-09-13T20:54:47.760

13 Is it possible that a gas giant of similar size to Jupiter could harbor life? 2014-11-29T13:10:08.487

13 Is there a habitability zone between the primary and secondary stars of a binary star system? 2018-02-23T02:13:51.470

13 Rogue Planet Illuminated by Galactic Centre 2019-07-27T15:19:51.573

12 Could life exist in a circumstellar disk? 2015-08-18T15:58:10.807

12 Is it possible for life to exist on the core of a gas planet? 2016-07-07T19:53:11.190

12 How much mass does a human need to live a satisfying life? 2017-05-31T07:18:24.963

11 Habitability of an icy volcano planet 2015-04-29T19:35:56.880

11 Can a planet without one or more moons be habitable? 2016-03-14T20:38:10.130

11 Smallest planet that can maintain plate tectonics? 2016-08-05T06:36:03.000

11 Is life required for a world to be habitable for humans? 2016-08-28T15:18:21.933

11 What kind of Gas Giant has a "safe zone" between the radiation from a star and the radiation from a gas giant planet? 2018-09-21T19:27:03.863

11 Life on the Broken Ring - an issue of size 2019-06-26T18:56:25.547

10 How to make a rogue planet liveable? 2016-01-17T03:41:42.990

10 Habitability of a world inside a dark nebula 2018-01-08T23:58:08.760

10 What is a usable formula for determining the necessary strength of a planet’s magnetic field for it to be habitable? 2018-08-20T14:08:01.220

10 Increased Luminosity in Stars 2018-09-10T15:33:09.193

10 Algae using UV light from auroras for photosynthesis 2019-08-20T19:38:49.107

9 What would the effects be of two tidal locked planets have on each other's geography? 2016-02-20T04:03:20.757

9 Can a situation exist where there is one pole that is hot and another cold on a planet? 2016-03-31T20:55:43.570

9 How long would it take a region to geologically settle down after a major cataclysm? 2016-05-24T20:16:02.233

9 Is this atmospheric composition breathable, and what would it look like? 2017-06-05T18:43:45.610

9 What would've had to change in the early solar system for Mars to remain habitable? 2018-02-07T02:17:57.473

9 How long does it take for islands to form after an underwater volcanic eruption? 2018-09-28T15:27:47.440

9 Determining Planet rotation period that would allow for global Wind Cell 2019-03-07T02:16:57.103

9 What is the theoretical maximum number of habitable planets in one solar system? 2019-07-16T15:37:13.683

8 How could humans survive in extremely high gravity? 2014-12-09T21:03:14.990

8 A planet made of trash? 2015-02-18T16:31:41.033

8 Planetary Habitability at twelve to seven billion years ago 2015-03-25T10:36:10.387

8 Let's build a Super-Habitable Earth 2015-08-18T00:11:39.483

8 Can this unique planet be colonized? 2016-06-16T20:43:51.130

8 What is the habitable zone around my star? 2017-04-30T21:31:48.370

8 What can temporarily disrupt Earth's magnetosphere? 2017-07-12T22:16:09.817

8 ''Habitable'' planet close to a star 2019-07-17T16:42:44.983

8 Could bacteria survive on a star? 2019-12-31T13:13:46.573

7 What Is The Minimum Size Of A Planet To Harbor Human Life? 2016-01-05T00:24:57.773

7 What would be the ecosystem on a earth-like planet with substantially less oceanic water than Earth? 2017-02-26T20:38:24.557

7 What would weather/geographical conditions be like on a tidally locked moon? 2017-04-02T16:19:06.870

7 What are the conditions of an Earth-like, water-ball planet? 2017-12-18T13:34:32.560

7 Heating a gas giant's moons in a red dwarf system 2019-05-22T11:39:44.807

7 Life around Cepheid Variable stars 2019-07-26T01:36:39.783

6 Could plasma be a building block for life? 2015-11-11T01:04:04.450

6 Is it in any way possible to make a habitable (or colonize-able) corkscrew planet? 2015-12-09T02:46:38.023

6 Is this planet possible in real life? 2016-03-17T01:23:04.773

6 Possibility of a terrestrial moon orbiting a Jovian planet for the setting of a fantasy world 2016-06-15T08:11:53.363

6 Could an impact crater make a world habitable? 2016-06-16T00:20:00.667

6 Can my habitable planet have a habitable moon? 2016-10-01T03:39:38.290

6 Could life develop in this ternary sytem? 2017-05-13T01:58:10.833

6 Planet Tidally-Locked to its star having eclipse day/night cycles? 2017-05-15T01:37:37.910

6 Please help me calculate acceptable planet sizes & eclipse shadows cast by my binary planet system 2017-06-18T20:03:23.543

6 Planet Orbiting a Red Dwarf 2018-12-27T23:55:29.637

6 If Earth's atmosphere were to be enclosed, what effects would what have? 2019-02-04T03:43:25.337

6 How far away from a Sol-class sun could a planet be and still be habitable? 2019-03-22T18:01:50.713

6 Super earth habitability 2019-06-28T04:57:13.233

6 Could a planet be habitable due to illumination from the galactic core? 2019-09-06T21:25:19.603

5 Could life in a planemo be sustained by cosmic background radiation? 2015-03-22T14:51:23.597

5 Naturally making a gas giant moon habitable 2015-10-15T19:57:24.397

5 How many Mars sized planets can form and remain stable in the habitable zone of a Sun-like star? 2016-09-11T14:59:03.443

5 How would year length affect habitability of a planet? 2017-02-23T03:31:20.387

5 Solitary celestial body with support for humanoid life 2017-03-30T20:58:42.457

5 Life on a rogue planet 2017-12-08T22:18:45.660

5 How would a colliding binary affect its planetary system? 2017-12-19T11:28:18.290

5 Effects of Hot Jupiters on habitable planets 2018-09-08T15:52:59.910

5 Habitability of a planet with highly variable temperatures 2018-12-19T15:54:35.247

5 What is the Habitable Zone of a Red Dwarf star? 2019-01-25T12:08:43.917

5 What would Define Ecosystems in a "Frozen Moon with Ocean" World 2019-03-08T18:13:57.187

5 Earth Has Four Seasons Lasting Years. Is This Too Much? 2019-08-22T02:02:43.373

4 What would a binary black hole look like from the surface of a planet orbiting that system 2015-02-03T03:18:00.270

4 Can a planet with 2/3 Orbital eccentricity sustain life? 2015-02-17T16:16:40.270

4 How can I get a habitable moon of a gas giant to cool once it is in the planet's shadow? 2015-03-21T21:42:53.677

4 Is complex life on a season-less, moonless planet, with two separate and distinct ecosystems possible? 2015-03-22T02:14:40.073

4 South Polar Bears 2016-07-01T14:49:32.567

4 Resources to possess, and restrict in asteroid belt 2016-12-17T00:57:33.893

4 Can I build on and live on an island size tortoise? 2016-12-18T18:38:47.750

4 Could humans colonize this planet? 2017-06-11T17:57:04.310

4 Is a 1:1 Earth possible in a binary system? 2017-07-19T05:31:51.573