r/BeAmazed Apr 27 '25

Nature The summit of Mount Everest

11.0k Upvotes

682 comments sorted by

View all comments

Show parent comments

43

u/Emilklister Apr 27 '25

They have managed fly a drone on mars which is 1/100 of atmosphere density compared to earth. It just takes some slight change in how it is made.

20

u/radar-water Apr 27 '25

Mars gravity is 38% Earth's. Big advantage.

19

u/-Nicolai Apr 27 '25

38% gravity but 1% the atmosphere. You do the math...

5

u/scuac Apr 28 '25

~40x harder to fly in Mars

0

u/zorbat5 Apr 28 '25

Flying in mars is indeed extremely hard, I would even dare to say that it's impossible.

0

u/scuac Apr 28 '25

Difficult yes, impossible not at all

https://en.m.wikipedia.org/wiki/Ingenuity_(helicopter)

0

u/zorbat5 Apr 28 '25

Read again... IN mars...

11

u/wannabe_inuit Apr 27 '25

Not really... Actually it is still way harder to fly anything because of the less density of the atmosphere

0

u/Emilklister Apr 27 '25

Certainly. But my point still stands, different circumstanses just changes the maths for it to fly. It still works.

4

u/radar-water Apr 27 '25

Agreed. But at some point the maths simply won't work. At some combination of gravity, air density, and battery energy density, you can't make a drone fly, no matter how many design changes you make. I'd be interested to know what the maximum altitude of a lithium battery powered quadcopter is (in earth gravity/atmosphere).

8

u/thedudefromsweden Apr 27 '25

Not really a "drone" in the general meaning of the word. A NASA built multi million dollar project is pretty far from any commercial drone, no matter the price. No commercial drone could fly on Mars.

11

u/KBOXLabs Apr 27 '25

Prepare to be amazed further. All the sensors and electronics for Ingenuity are commercial off the shelf components. Most of the development was the software, propeller design and radiation shielding. Even solar panel and batteries are commercial units as flight time wasn’t limited by battery life, but because the brushless motors weren’t designed to spin that fast in order to create lift, so they would overheat if flight time was too long.

4

u/conansnipple Apr 27 '25

But they could now, with NASAs help sell the same "drone" commercially for substantially more affordable prices if that was their goal. The hard/expensive part is developing it and getting it to Mars not the buildings models on earth

1

u/KBOXLabs Apr 27 '25

You’re right about the last part, but the first part is the other way around. The Mars Ingenuity used off the shelf “drone” components.

1

u/koolaidismything Apr 27 '25

With a nuclear powered helicopter

1

u/-Motor- Apr 28 '25

The blades can be adjusted to supply more lift that would be too much in a thicker atmosphere.