43 Migrating Dungeon Monsters / Why do monsters not leave the dungeons? 2016-06-24T10:00:41.783

38 The Infinite Sea, how narrow can that be? 2018-06-18T14:52:19.477

36 Colonizing the galaxy by slow boating reality check 2018-02-01T06:02:15.303

22 Is it possible for a large pre-electricity empire to stay in touch? 2016-09-09T03:16:01.153

21 What would hinder the exploration of an alien outpost? 2015-03-13T10:19:07.550

21 Exploration of a 50 mile high mountain 2017-11-03T14:59:56.743

19 What could prevent a thriving civilization from exploring neighboring lands/continents? 2020-01-27T15:59:01.537

17 How large would an orbiting structure have to be to be largely unexplored after 100 years? 2016-04-15T12:17:08.923

15 Dungeons in a Medieval fantasy 2016-01-02T19:30:27.430

15 How to make people spread over the earth? 2018-04-10T06:48:42.420

14 How to navigate without magnetism? 2015-06-18T00:43:40.787

14 How might the actions of descendants matter for their ancestors? (reverse causality) 2016-12-07T02:36:44.870

13 An interplanetary coordinate system 2015-01-16T10:17:02.743

13 How can I get a very large air bubble floating under Europa's ice? 2015-06-22T18:55:30.750

12 How fast can you develop a frontier village into a barony 2015-02-17T01:29:36.217

12 What could prevent concentrated local exploration? 2019-04-22T10:23:50.173

12 Exploration for a noble reason (something other than expansion of religion or conquest)? 2020-02-03T09:12:59.283

11 Two countries have a five thousand mile desert between them. How can a city survive there? 2017-12-19T20:02:56.847

11 Why would a medieval civilization leave newly discovered land undeveloped? 2019-12-25T06:00:22.567

9 When did humanity have the knowledge to prove this semi-flat world is an octagon? 2018-10-06T19:23:51.593

7 How much life could our galaxy support? 2015-07-28T15:11:41.903

7 Aliens in a 4D universe try to explore our 3D spacetime fabric: How can they do it? 2019-04-12T20:11:04.173

6 Monolithic vehicles vs a convoy; So you want to go on a road trip 2016-02-26T15:36:38.423

6 Battle tactics for portal warfare / exploration 2016-09-26T14:40:48.537

6 How unlikely is it that Hawaii was discovered by Old World explorers? 2018-01-16T01:55:10.120

6 How long would could a mars rover remain intact? 2019-08-24T22:47:37.687

5 Could the industrial revolution pre-date the age of discovery? 2015-11-24T20:23:53.300

5 Can we land on a planet with methane-oxygen atmosphere? 2016-06-24T12:32:14.740

5 How can I tell if stone age aliens are sapient? 2016-07-15T04:47:39.890

5 How to broadcast Earth's position to someone in the future? 2018-10-27T04:05:22.007

4 Alien exploration : drone digging earth crust 2015-06-23T12:58:06.870

4 How would lack of stars , sundials , and compasses affect the exploration age? 2016-05-19T17:50:00.907

3 Where would Heaven be? 2016-04-12T20:27:11.303

3 Reasonable way to determine orbital parameters in an unknows stellar system 2016-12-05T10:54:58.020

3 How far would I need to go back in time to find an isolated island on our earth? 2017-12-08T19:35:24.200

3 Could dinosaurs have been discovered during the age of discovery? 2019-06-26T15:27:48.550

2 How to prepare for an alien pyramid exploration? 2016-03-15T10:18:18.817

2 How to build a "cloud city" in a gas giant? 2016-06-15T02:41:36.620

2 Logistics of manned Europa exploration? 2016-08-11T01:25:37.793

2 How much area of a gigantic world could an 18th century maritime civilization explore in a millennium? 2016-09-07T03:06:51.190

2 Exploring extraterrestrial oceans with submarines? 2017-04-24T17:50:02.867

1 What equipment would a well-funded research team need to explore a previously undiscovered island about 55,000 km2 in size? (EDITED) 2018-04-05T16:30:15.217

1 A large island is discovered and thoroughly explored by scientists. What happens next? 2018-06-16T16:30:18.560

1 What are the components of a Von Neumann probe? 2019-10-02T22:30:13.537

0 Can humanity survive on red planet 2016-08-18T15:06:16.727

0 How to find earth's relative position anywhere in the galaxy without any markers or brute force exploration? 2018-08-03T23:25:56.063

-2 Exploration team design 2016-12-06T02:51:09.547

-2 What could make a group of living organisms disappear completely from a closed structure? 2018-04-17T14:24:10.027