Skip to main content
fraxinus's user avatar
fraxinus's user avatar
fraxinus's user avatar
fraxinus
  • Member for 4 years, 7 months
  • Last seen this week
31 votes
Accepted

Why are tunnels not popular considerations for Lunar or Mars colonies?

18 votes

Are pictures of Earth' space junk realistic?

18 votes
Accepted

Cyanobacteria as Life Support?

17 votes

Why exactly do robots freeze? How could we engineer around it?

17 votes

Why do cryogenic fuels want an extra pressure tank?

16 votes

What led NASA et al. to decide the ISS should be a zero-g station when the massive negative health and quality of life impacts of zero-g were known?

14 votes

Are there any greater risks of traveling significantly faster to another planet?

12 votes

Hydrazine and liquid fluorine as a semi-cryogenic storable lunar space propellant

8 votes

Can you throw a stone into longterm orbit from the surface of a spherical planet if it has lumpy enough gravity?

8 votes

Can I be a NASA astronaut as a 5 feet 6 inches 16-year-old Bangladeshi girl with eyesight problems?

8 votes

After the Crew Dragon's success, does Boeing's Starliner still offer value?

7 votes

Is the weightlessness in a swimming pool the same as in outer space?

7 votes

Is the Beagle fixable?

4 votes

Do two objects with intersecting orbits have to collide given enough time?

4 votes

Finned heatsinks in space

3 votes

Is there a self-rounding celestial body from which an Olympian could jump into space?

3 votes

Is it legal to steal the American flag from the moon?

3 votes

If someone built a vacuum tunnel through the atmosphere, could you have an orbit with a sea level perigee?

3 votes

Comet at Mars L1

3 votes

Why does GPS need the fourth satellite?

2 votes

Thorium in space

2 votes

Is it possible to view JWST from Earth or From Hubble Space Telescope?

2 votes

Can a LEO based satellite constellation revive the analog radio or TV era?

2 votes

Is it possible to create a relativistic space probe going at least 0.1c with present day technology?

1 vote

Is there any reason that we have not sent a small mammal to Mars?

1 vote

JWST detector heat load

1 vote

Is there an elegant method to stop an asteroid's spin?

1 vote

Apollo: what was the big deal?

1 vote

Why do we need to make probes land on other planets or moons?

0 votes

How can cosmic ray muons be used to replace GPS for positioning information in 3D on Earth and underwater?