Do the moons of Mars have enough gravity to colonize?

Context

NASA commissioned some awesome, vintage-style prints a while back advertising the colonization of Mars.

Three of them stood out to me because they depicted colonization of the moons of Mars - Phobos and / or Deimos.

(The rest of those prints are here, and they're free)

I would like to have colonies on these moons in my world, but the moons are extremely small relative to our moon (or even Mars) so they have very low gravity. Knowing NASA, there must be a scientific basis for these images, but intuitively, this does not seem possible.

Is there any scientific basis behind strong, gravity-like effects in these locations? If not, what can be engineered to allow "gravity" in such open spaces?

Note: "Enough gravity" means that people won't escape the planet with everyday movement; low gravity should also not be extremely inhibitive (ex. flying 10 feet into the air when you take a step up)

posted over 7 years ago

Zxyrra‭

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