Scientific Speculation

50%

+0 −0

How much technology for a ring-world to work?

7 answers · last activity over 6 years ago by Sheraff‭

space planets science-based

50%

+0 −0

If there was a planet where the asteroid belt is, could it have a stable orbit?

4 answers · last activity over 6 years ago by Chris Camacho‭

orbital-mechanics solar-system

50%

+0 −0

Cheaper to grow crops in Earth and sending it to space or to grow them in orbit?

6 answers · last activity over 6 years ago by mcbecker‭

science-based culture apocalypse agriculture

50%

+0 −0

How long to freeze a planet?

2 answers · last activity over 6 years ago by Sam Washburn‭

planets apocalypse megastructures gas

50%

+0 −0

Removing the metal from a star

1 answer · last activity over 6 years ago by Sam Washburn‭

stars physics metals

50%

+0 −0

Dyson Laser feasibility

1 answer · last activity over 6 years ago by Sam Washburn‭

space space-constructs weapon-mass-destruction megastructures energy gas

50%

+0 −0

Can a planet's moon rise at the same time every night?

3 answers · last activity over 6 years ago by Jaz‭

space moons time

50%

+0 −0

Weather on a mini-ringworld/Banks Orbital

3 answers · last activity over 6 years ago by System‭

space weather space-constructs

50%

+0 −0

Biology-centric civilization vs AI-based civilization

3 answers · last activity over 6 years ago by Anixx‭

biology futurology intelligence artificial-intelligence

50%

+0 −0

What are the minimum local environment requirements for a human colony?

2 answers · last activity over 6 years ago by Dan Werer‭

science-based colonization

50%

+0 −0

How would plants be affected by a 48 hour day?

4 answers · last activity over 6 years ago by Shyy Guy‭

earth-like biology day-night earth

50%

+0 −0

Human survival without eating

3 answers · last activity over 6 years ago by Rodolfo Dias‭

biology creature-design genetic-engineering engineering

50%

+0 −0

What would be the effects of a Chicxulub-sized impact on Earth's magnetic field?

2 answers · last activity over 6 years ago by Soryu‭

reality-check planets science-based earth

50%

+0 −0

A villain with a system (located on ground) that has created a catalog of earth orbit satellites

3 answers · last activity over 6 years ago by x457812‭

astronomy

50%

+0 −0

Effects of high magnetism?

4 answers · last activity over 6 years ago by 22mg‭

space biology reality-check physics

50%

+0 −0

Realistic Future Jobs for Men and Women

22 answers · last activity over 6 years ago by Serban Tanasa‭

technology economy futurology intelligence artificial-intelligence post-scarcity city

50%

+0 −0

What are the expected impact on Earth ecosystems by mining activities in the Moon?

3 answers · last activity over 6 years ago by Hatoru Hansou‭

reality-check planets science-based moons earth

50%

+0 −0

What science-y stuff could hide an island?

3 answers · last activity over 6 years ago by Vector Lightning‭

geography science-based futurology

50%

+0 −0

Entertainment for AI

9 answers · last activity over 6 years ago by guido‭

technology intelligence artificial-intelligence

50%

+0 −0

Is it possible for humans to live on such a planet?

5 answers · last activity over 6 years ago by ballah‭

reality-check planets science-based humans survival

50%

+0 −0

Suddenly, you live in the dark!

7 answers · last activity over 6 years ago by ballah‭

environment reality-check planets science-based technological-development

50%

+0 −0

In 'portal', pushing interconnected portals on thin portal sized rectangles of material through each other?

2 answers · last activity over 6 years ago by alan2here‭

physics teleportation

50%

+0 −0

What would the weather be like in an asteroid habitat?

3 answers · last activity over 6 years ago by Mike Nichols‭

space weather science-based physics space-constructs

50%

+0 −0

Could a manned maneuvering unit provide artificial gravity?

3 answers · last activity over 6 years ago by Dan‭

reality-check science-based gravity

50%

+0 −0

Possibilities with a force-manipulating device

3 answers · last activity over 6 years ago by AlphaModder‭

physics

50%

+0 −0

What happens to air pressure if the ice caps completely melt?

2 answers · last activity over 6 years ago by Mikey‭

climate atmosphere water water-bodies

50%

+0 −0

Making the First contact

3 answers · last activity over 6 years ago by Pavel Janicek‭

space travel society psychology aliens humans space-travel

50%

+0 −0

A species developing writing but not (yet) speech

5 answers · last activity over 6 years ago by Michael Sacchi‭

evolution language

50%

+0 −0

Burrowing/tunnelling creatures on earth with intricate underground organisation/society?

2 answers · last activity over 6 years ago by alan2here‭

biology reality-check

50%

+0 −0

Astronomical Phenomena that cause Tidal Waves

3 answers · last activity over 6 years ago by erdekhayser‭

space moons stars apocalypse radiation

50%

+0 −0

Harnessing the Moon's kinetic energy

2 answers · last activity over 6 years ago by MDMoore313‭

moons energy

50%

+0 −0

Locations for space centres

4 answers · last activity over 6 years ago by J_F_B_M‭

space travel space-travel urban

50%

+0 −0

Is the Alcubierre Drive relatively free from relativistic collisions?

1 answer · last activity over 6 years ago by bowlturner‭

space travel science-based physics space-travel

50%

+0 −0

What is the minimum distance needed between physically distinct races?

3 answers · last activity over 6 years ago by Epiglottal Axolotl‭

geography races demographics genetics

50%

+0 −0

How can I estimate how far into a cave network breathing is possible?

2 answers · last activity over 6 years ago by trichoplax‭

science-based physics caves

50%

+0 −0

Traffic in Space (a traffic controller for low earth orbit)

2 answers · last activity over 6 years ago by 2012rcampion‭

space travel society science-based orbital-mechanics space-travel

50%

+0 −0

Eye in the Sky Effect

5 answers · last activity over 6 years ago by Donny‭

astronomy planets moons

50%

+0 −0

How would a Martian colony be able to celebrate Christmas?

12 answers · last activity over 6 years ago by Pavel Janicek‭

planets society humans solar-system

50%

+0 −0

Trebuchet's effect on ship design

3 answers · last activity over 6 years ago by Tyson of the Northwest‭

physics shipbuilding

50%

+0 −0

Is it possible for humans to evolve to eat something like wood or stone or something similar?

3 answers · last activity over 6 years ago by CrazySlayaNinjaBear‭

evolution humans

50%

+0 −0

Cost of colony on Mars/Moon per metric ton

1 answer · last activity over 6 years ago by Irigi‭

space science-based colonies economy

50%

+0 −0

What is the soonest we could possibly have a self-sufficient base on Mars?

7 answers · last activity over 6 years ago by overactor‭

space colonies

50%

+0 −0

Could a civilization as advanced as humans exist on a planet/dwarf planet like Pluto?

5 answers · last activity over 6 years ago by CrazySlayaNinjaBear‭

biology planets science-based civilization humans

50%

+0 −0

How to fragment a moon to form a ring around a planet

4 answers · last activity over 6 years ago by Robert Boettcher‭

planets science-based moons

50%

+0 −0

How soon will the first underwater cities be built?

4 answers · last activity over 6 years ago by Sheraff‭

science-based cities water underwater

50%

+0 −0

Method for creating aerial visuals (photography) for fake landmasses

2 answers · last activity over 6 years ago by randomblink‭

geography software-recommendations cartography

50%

+0 −0

Would the knowledge of physics on a native aquatic planet be similar to our own?

7 answers · last activity over 6 years ago by fubar50‭

planets science-based physics computers scientific-development

50%

+0 −0

How soon will tinkering with biology be as simple as programming is now?

5 answers · last activity over 6 years ago by Sheraff‭

biology science-based technological-development

50%

+0 −0

4 answers · last activity over 6 years ago by Rodolfo Dias‭

biology creature-design

50%

+0 −0

Space station mass per person

1 answer · last activity over 6 years ago by Irigi‭

space science-based space-constructs space-stations

Communities