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For questions related to outer space, stellar systems, stars and other astronomical phenomena.

0 votes
1 answer
83 views

Could an alien learn human history from a time lapse of Earth?

If humanity had a huge nuclear war in the semi-near future, would this be visible from space? …
Mark Price's user avatar
  • 2,438
6 votes
6 answers
994 views

Static Floating Objects in Zero Gravity

Would there be a way for a specially-designed object, like a star, to be held static in a given location in a large, specially-designed space without physical contact? … My first idea was magnetic induction from the “walls” onto the object, but I don’t think that would work for multiple objects in different locations in the same space. …
Mark Price's user avatar
  • 2,438
6 votes
4 answers
189 views

Flash Flooding on Titan?

From what I’ve researched, Saturn’s moon Titan is believed to have a methane cycle throughout its seasons. Particularly, during the winter season, methane rain falls, filling Titan’s lakes and rivers. …
Mark Price's user avatar
  • 2,438
5 votes
3 answers
760 views

Is “asteroid rain” on the Moon a feasible concept?

In my story, a group of creatures lives on the Moon. I know that microlith striking the Moon is fairly common, to the point that EVA suits are built to compensate for it, but I was planning to have a …
Mark Price's user avatar
  • 2,438
7 votes
3 answers
540 views

Advanced Soldiers using Echolocation/Sonar?

My story takes place on a dark, dusty planet full of canyons and tunnels. The atmosphere is compositionally similar to Earth’s, but it is too dark and cloudy for humans to see properly. The humans col …
Mark Price's user avatar
  • 2,438
11 votes
5 answers
3k views

Could an insect cast in amber stay intact in space?

The chunk of amber it is encased in eventually finds itself drifting through deep space without any sort of human-sourced protection (long story). …
Mark Price's user avatar
  • 2,438
1 vote
2 answers
152 views

Could an organism exist in a vacuum just by temporarily “shutting off” and storing heat?

I’ve heard repeatedly that life in deep space is incredibly unrealistic, but I’ve had a (certainly scientifically stretched) idea for a race of ant-like creatures who live deep under the lunar surface … TLDR: Underground space bugs collect heat from the lunar core over a long period of time while in their eggs, then use the store of energy to mature and lay more eggs before death, making respiration and …
Mark Price's user avatar
  • 2,438
2 votes
2 answers
513 views

Would digitigrade legs be superior in low gravity for a bipedal organism?

all, I was reading another post on this forum about humans with digitigrade legs, mostly noting that they were relatively inefficient due to constant exertion to remain standing. On a planet with lowe …
Mark Price's user avatar
  • 2,438
1 vote
1 answer
85 views

Tunnelling Spores in Asteroid Belt

The life-form is (loosely) based off of this article: https://www.zmescience.com/science/geology/fungus-eating-minerals/ The spores of my life-form are cast into space in all directions, and those that … As the life-form spreads and expands through the tunnels, it generates large "caps" (like mushrooms) responsible for releasing more dormant spores, which drift through the tunnels out into space until …
Mark Price's user avatar
  • 2,438
8 votes
9 answers
2k views

Could Short-Range Fighters Realistically Return?

These scenarios seem even less probable between spacecraft, given the difficulty of changing direction and sheer open space. … Are there any realistic sets of conditions, on Earth, space, or an alien environment that would encourage a return to World War II-style dogfighting/maneuvering mechanics? …
Mark Price's user avatar
  • 2,438
5 votes
5 answers
775 views

What would a human genetically modified to thrive in low gravity look like?

modifications would be around just living in low gravity without atrophy or decay, if that’s possible; for example, astronauts on the ISS have reported loss of vision and potential harm of radiation while in space
Mark Price's user avatar
  • 2,438