Is there Gravity on Mars?

Mars has bout 38% of Earth's gravity. But when you add the weight of a space suit (about half their bodyweight, give or take) Astronauts aren't going to be leaping about that easily. Take the Moon landings, there gravity is about 1/6 that of Earth, but you didn't see Buzz jumping huge distances.

Are you a retard or this truly is the condition of your schools?

EVERY HEAVENLY BODY HAS GRAVITY! EVEN TINY ASTEROIDS HAVE GRAVITY!! FKKKK

With all the outrage at the sorry state of crpl_hicks's (IMHO, we should give the guy a break - the character he's chosen as a screenname was, after all, just a grunt) science education (which hopefully is a work in progress, which the virtual flogging administered through this forum has steered toward some much-needed remediation), I think a good question has been overlooked.

As with so many movies about space travel, TLDoM misses an opportunity to depict the difference in movement that the lesser acceleration of gravity on the surface of Mars requires, especially in the various running scenes.

Doing the algebra, you'll find that many relevant quantities scale proportionally with the ratio of the acceleration of gravity on the surface of Mars vs Earth, which is about 1:2.66. All other things being equal (physical strength, cloths, etc) a person could jump 2.66 times as high on Mars as they could on Earth. Their hang time would be 2.66 times longer. A dropped coffee cup would take 2.66 times as long to hit the floor, so catching said cup before it hit the floor would be easier. And so on.

Running would look strikingly different on Mars than on Earth, the main feature being that if the runner used their usual form, they'd be airborne between strides for 2.66 times as long and have a mid-stride bounce height 2.66 times higher.

As was the case on the 1960-70s Apollo Moon missions, I think it's unlikely that people would move using the same form as on Earth. Rather, they'd intuitively learn more effective ways of getting around, perhaps a variation of the skipping/bunny hopping the Apollo astronauts favored, perhaps something much different.

It's not easy to simulate movement in gravity different than Earth's, or predict how people would move in it. Apollo mission planners conducted some clever experiments, but concluded then once they showed that the Apollo moon walkers likely wouldn't have any dangerous difficulties getting around. As best I've been able to tell from scattered astronaut and planner comments, the way Armstrong and Aldrin actually moved didn't match simulation-based expectations.

I think it would be nifty if space agencies, volunteer org like Mars One, filmmakers like those who made TLDoM, or better, a collaboration of all these, would run some real simulations using improved versions of the Apollo ones, make some informed guesses about how folk would actually move on Mars, and use the info in a movie. It would add to the cost of a movie, and likely offend some viewers, but delight others, and best, inspire young viewers to think about and contribute to science.

"Is there Gravity on Mars?"


Oh. My. God.









'Then' and 'than' are completely different words and have completely different meanings.

Every in space that has mass has gravity.

[deleted]

There is NO gravity on Mars. It just appears that way because this movie sucks.
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I don't have a dog. And furthermore, my dog doesn't bite. And furthermore, you provoked him.

You can't be serious. Of course there's gravity on mars. Anything with mass has gravity; even you.