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8 votes

How will Dragonfly (mission to Titan) keep from flipping over?

They plan to use some form of "site evaluation" to prevent tipping over: However, technology developments in the last two decades, notably the revolution in availability of multi- rotor ...
Hobbes's user avatar
  • 128k
4 votes

How exactly do the AstroBees implement propulsion and attitude control?

The paper Astrobee:Developing a Free-flyingRobot for the International Space Station explains the propulsion system rougly in two sentence: Astrobee’s propulsion system consists of a propulsion ...
GittingGud's user avatar
3 votes

How does JAXA's "Int-Ball" manage airflow to optimally navigate inside the ISS?

I think the Int-Ball uses all fans in a "push-configuration" and only does have passive air inlets in it's chassis. The internals of the chassis are therefore "empty" enough to enable sufficient ...
GittingGud's user avatar
3 votes

How many robots have been at, in, or on the ISS?

Here is a selection of robotic equipment that has been at/in/on the ISS, feel free to add additional references: Cell Biology Experiment Facility (CBEF) can autonomously control a centrifuge, among ...
2 votes

Why did NASA need to attach smartphones to the SPHERES robots in order to link them to the ground?

According to the SPHERES Wikipedia page, SmartSPHERES experiment equipped the three SPHERES satellite aboard the International Space Station with Nexus S smartphones that were delivered via the ...
DrSheldon's user avatar
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2 votes

Flying on dense atmosphere planets & moons

Venus would appear to be the most practical, not Titan (one HAS to factor the cold). Yes, it's so hot on Venus it melts lead at 621 degrees F. However, lead is a soft metal and it's heavy. We don't ...
airplaneguy11's user avatar
1 vote

What is the difference between "body drag", "frictional drag" and "pressure drag" for astronaut or aerobot atmospheric locomotion in microgravity?

Drag is a resultant vector that accumulates from integrating all forces in contact with the body over the entire surface. For the most part, this comes in two forms: pressure (normal to the surface) ...
Paul's user avatar
  • 1,984

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