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Posts tagged astrophysics

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66 posts
Tag Only Tag + Children
66%
+2 −0
How fast would strange matter conversion go?

1 answer  ·  last activity about 2 months ago by HDE 226868

science-based physics quantum astrophysics
66%
+2 −0
Do seasons occur on a tidally-locked planet?

4 answers  ·  last activity 2 months ago by HDE 226868

astronomy planets seasons astrophysics tidally-locked
60%
+1 −0
What sets of stellar models are freely available for reference when worldbuilding?

1 answer  ·  last activity 3 months ago by HDE 226868

stars astrophysics worldbuilding-resources
50%
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Superfluid lifeform

1 answer  ·  last activity 3 months ago by Nierninwa

biology reality-check physics astrophysics
50%
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How deep can the oceans be while still alowing some land?

1 answer  ·  last activity 3 months ago by TheDyingOfLight

physics geology ocean astrophysics
50%
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Could co-orbital planets also be double planets?

2 answers  ·  last activity 4 months ago by Axion

space science-based physics orbital-mechanics astrophysics
50%
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How massive would a planet need to be to sustain negligible damage from impact with the Earth?

6 answers  ·  last activity 5 months ago by Wax

planets science-based physics astrophysics
50%
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Could a hypothetically big enough planet, with an earth-like atmosphere, be big enough so that you cannot see its curvature from above?

2 answers  ·  last activity 6 months ago by D3lf

earth-like physics earth astrophysics
50%
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What biological trait could make (certain members of) an insectoid species good at astronomy?

12 answers  ·  last activity 6 months ago by Iroh

biology astronomy physics science-fiction xenobiology astrophysics
60%
+1 −0
Using planetary/stellar media for lasing

1 answer  ·  last activity 6 months ago by Adrian Colomitchi

science-based solar-sails astrophysics
50%
+0 −0
How long to become a habitable planet

0 answers  ·  last activity 6 months ago by user72655

physics orbital-mechanics solar-system habitability astrophysics
50%
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Are (near) instant data transfers feasible on an intergalactic scale?

4 answers  ·  last activity 6 months ago by Plutian

space travel science-based physics communication space-travel colonization space-colonization astrophysics
50%
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Asteroid in the asteroid belt suddenly gains the gravity of the earth

4 answers  ·  last activity 6 months ago by William Oliver

planets physics gravity asteroids astrophysics
50%
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Orange Suns and Blue Jupiters

1 answer  ·  last activity 7 months ago by Arkenstein XII

atmosphere reality-check planets physics astrophysics
50%
+0 −0
Could a mass made up of certain elements or compounds "disrupt" a star?

6 answers  ·  last activity 7 months ago by NegativeFriction

space stars physics astrophysics
50%
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How far should second star be in my binary system?

4 answers  ·  last activity 8 months ago by Failus Maximus

earth-like planets science-based stars physics earth astrophysics
50%
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How much damage would a cupful of neutron star matter do to the Earth?

8 answers  ·  last activity 8 months ago by Quadratic Wizard

stars physics astrophysics
50%
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How might an exoplanet have a highly radioactive atmosphere?

2 answers  ·  last activity 8 months ago by ZarHakkar

astronomy atmosphere science-based physics nuclear astrophysics
50%
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Can adding mass to a ringed planet cause a huge chain reaction?

2 answers  ·  last activity 8 months ago by overlord - Reinstate Monica

planets science-based physics gravity planetary-rings astrophysics
50%
+0 −0
How could formamide lakes form on an exoplanet?

3 answers  ·  last activity 9 months ago by TheDyingOfLight

planets science-based physics chemistry geophysics astrophysics
50%
+0 −0
What would be the fate of a second satellite at the mid-point between the Earth and the Moon, with half the mass of the Moon?

2 answers  ·  last activity 9 months ago by Wax

science-based moons physics astrophysics
50%
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Is a Heliostationary Receiver realistic?

4 answers  ·  last activity 9 months ago by Vogon Poet

reality-check science-based physics astrophysics
50%
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What does and doesn't work with this planetary system around a red dwarf?

1 answer  ·  last activity 10 months ago by LeftLiner

astronomy reality-check planets physics astrophysics
50%
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Is an earthlike planet with ammonia oceans even plausible?

2 answers  ·  last activity 11 months ago by TheDyingOfLight

planets science-based physics chemistry astrophysics
50%
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If we were to assume the shape of planet Popstar from Kirby is kept that way artificially, how would the shape affect its day/night cycle?

1 answer  ·  last activity 11 months ago by Chickenpeep Chickenpeep

planets physics astrophysics
50%
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How could you build an artificial planet-sized magnetic field?

1 answer  ·  last activity 11 months ago by Richard Boone

physics magnetism electromagnetism geophysics astrophysics
50%
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Could a planet be habitable due to illumination from the galactic core?

1 answer  ·  last activity 11 months ago by TheDyingOfLight

astronomy habitability astrophysics
50%
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Moons that can't see each other

3 answers  ·  last activity 12 months ago by AIwithstick

astronomy moons physics orbital-mechanics astrophysics
50%
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What would happen if the Earth passed through an interstellar dust cloud?

2 answers  ·  last activity 12 months ago by Renan

space astronomy physics universe chemistry astrophysics
50%
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Can huge planets be seen from tiny planets?

4 answers  ·  last activity about 1 year ago by Bett Struble

planets moons physics astrophysics
60%
+1 −0
Can early astronomers determine the gravity of their planet's "moon" without ever going there?

5 answers  ·  last activity about 1 year ago by Foosic17

astronomy planets gravity astrophysics
50%
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What are the effects of a nearby supernova on a young solar system?

1 answer  ·  last activity about 1 year ago by TheDyingOfLight

solar-system supernova chemistry astrophysics
50%
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Rogue Planet Illuminated by Galactic Centre

2 answers  ·  last activity about 1 year ago by vicky_molokh

astronomy planets habitability astrophysics
50%
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Could a planetary nebula obscure the presence of a black hole/neutron star?

1 answer  ·  last activity about 1 year ago by marmel

reality-check planets science-based physics black-holes rogue-planets astrophysics
50%
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A planet illuminated by a black hole?

4 answers  ·  last activity about 1 year ago by Anixx

planets physics black-holes habitability astrophysics
50%
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Killing a star safely

20 answers  ·  last activity about 1 year ago by Henry Taylor

stars physics futurology astrophysics concealment
50%
+0 −0
Aliens to play a mischievous space-time practical joke on Earth

13 answers  ·  last activity about 1 year ago by Arash Howaida

science-based physics relativity astrophysics
50%
+0 −0
If Janus and Epimetheus had moons

1 answer  ·  last activity about 1 year ago by PowerOverwhelming

astronomy moons physics habitability astrophysics
50%
+0 −0
Intelligent life wiped out in a binary system with a neutron star?

4 answers  ·  last activity about 1 year ago by marmel

astronomy physics habitability cataclysms astrophysics
50%
+0 −0
What can my moons be made of?

2 answers  ·  last activity about 1 year ago by Bett Struble

moons physics astrophysics
50%
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What would be the effects on a planet orbiting a shedding red giant?

1 answer  ·  last activity about 1 year ago by Nobbe

earth-like planets stars physics solar-system earth astrophysics
50%
+0 −0
Could a black hole be used to lessen surface gravity on a Super-Earth?

1 answer  ·  last activity about 1 year ago by Pinkunz

reality-check planets physics gravity science-fiction astrophysics
50%
+0 −0
What is the minimum size for the Sun?

2 answers  ·  last activity over 1 year ago by System

stars astrophysics
50%
+0 −0
Could gravitational lensing be used to protect a spaceship from a laser?

5 answers  ·  last activity over 1 year ago by Dan Petit

space science-based spaceships physics gravity ships astrophysics
50%
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Building a planet with a primordial black hole core

1 answer  ·  last activity over 1 year ago by Althaen

physics black-holes megastructures gas astrophysics
50%
+0 −0
Determining Planet rotation period that would allow for global Wind Cell

1 answer  ·  last activity over 1 year ago by QuiGonJon

weather atmosphere science-based physics habitability astrophysics
50%
+0 −0
160 Year Solar Orbital Period & 1.9 Year Moon Orbital Period - Is it possible?

5 answers  ·  last activity over 1 year ago by DorianHuxley

planets science-based moons physics orbital-mechanics astrophysics
50%
+0 −0
What's the biggest, most spectacular asteroid collision the moon could save us from?

2 answers  ·  last activity over 1 year ago by geekman

space moons physics asteroids earth astrophysics
50%
+0 −0
Is there a plausible causal mechanism to explain why the Sun would be heating up faster/ sooner than we thought?

2 answers  ·  last activity over 1 year ago by Dan

astronomy science-based physics solar-system temperature astrophysics
50%
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"Landing" a small asteroid on Earth

7 answers  ·  last activity over 1 year ago by DMQ

space science-based physics asteroids near-future future astrophysics
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