Nasa selects 13 systems to test for deep space missions


comments

From hovering spheres to hopping 'hedgehogs', Nasa has chosen 13 new technologies to test for deep space mission.

The space agency will use parabolic flights and suborbital launch vehicles to see how the technologies perform in microgravity.

Among the most novel is a tumbling, hopping robot called 'Hedgehog' that will be tested on a parabolic flight that simulates weightlessness of space.

This artist's concept shows a robot with legs that have microspine grippers, which could potentially explore a rocky surface, such as an asteroid, in microgravity

This artist's concept shows a robot with legs that have microspine grippers, which could potentially explore a rocky surface, such as an asteroid, in microgravity

According to Nasa, these beach ball-sized Hedgehog rovers could soon be rolling around the surface of alien planets, if testing of the ground breaking design is successful.

The hedgehog probes were developed by Stanford researchers, in collaboration with Nasa's Jet Propulsion Laboratory and the Massachusetts Institute of Technology.

Dropped from a mothership, each rover would hop, tumble and bound across a cratered surface relaying information about its origins, as well as its soil and other surface materials.

This is a hopping/tumbling robot called 'Hedgehog' that scientists at Nasa's Jet Propulsion Laboratory will test on a parabolic aircraft flight

This is a hopping/tumbling robot called 'Hedgehog' that scientists at Nasa's Jet Propulsion Laboratory will test on a parabolic aircraft flight

The rovers would drop from a mother spaceship, and then be able to 'hop' across the surface, before tumbling to their final locations and take measurements from the surface

The rovers would drop from a mother spaceship, and then be able to 'hop' across the surface, before tumbling to their final locations and take measurements from the surface

THE CHOSEN TECHNOLOGIES

Technologies chosen for parabolic flights:

Microgravity mobility models for hopping Hedgehog robots

Microgravity rock coring drill using microspines

Use of gecko adhesive grippers

Reduced gravity flight demo of Spheres universal docking ports

Reduced gravity flight of 'Spheres Inspect'

Parabolic flight of Reaction Spheres

Load sensors for ISS Advanced Resistive Exercise Device

Effects of microgravity on skull pressure

Monitoring in microgravity of arterial stiffness

Payloads separation performance of a 6U CubeSat satellite dispenser

Dragon V2 propellant device

Technologies chosen for suborbital reusable launch vehicle:

Fuel Optimal and Accurate Landing Systems (Foals)

Zero-gravity green propellant management technology

Ten other technologies will be tested alongside the hopping robot on board the parabolic flights.

They include a universal docking ports for Spheres (Synchronised Position Hold, Engage, Reorient, Experimental satellites).

Nasa hopes Spheres could eventually take over daily chores for astronauts and even handle risky duties outside of the vessel.

The space agency recently announced that it plans to send Google's 3D smartphones into space to function as the 'eyes and brains' of free-flying Spheres inside the ISS.

The football-ball sized robots can be guided around the space station's microgravity interior, propelled by tiny blasts of CO2 at about an inch per second.

The phones and universal docking ports could help provide sensors on the robots to detect sharp angles inside the space station and create a 3D map that lets the Spheres navigate from one module to another.

Another project will test a robot with legs that have microspine grippers, which could potentially explore a rocky surface, such as an asteroid.

Meanwhile, an adhesive that can turn its stickiness on and off will be tested on the parabolic flights.

The concept came from watching geckos which use incredible 'dry adhesion' - their feet are sticky enough to carry a 9lb (4.1kg) of weight up a wall without slipping

Alongside the flights, a further two projects will fly on suborbital reusable launch vehicle test flights sometime later this year and again in 2015.

Nasa hopes Spheres such as the one pictured could eventually take over daily chores for astronauts and even handle risky duties outside of the vessel

Nasa hopes Spheres such as the one pictured could eventually take over daily chores for astronauts and even handle risky duties outside of the vessel

Nasa has developed a tool for grappling objects that incorporates gecko-like adhesives. The adhesives are reusable and can be turned on and off

Nasa has developed a tool for grappling objects that incorporates gecko-like adhesives. The adhesives are reusable and can be turned on and off

They include a high performance 'green' propellant alternative to the highly toxic fuel hydrazine.

This will join the Fuel Optimal and Accurate Landing System Test Flights (Foals) which is a rugged navigation device that can that perform real-time analysis on alien terrain.

To date, there have been 138 technologies selected for test flights facilitated by Nasa's Flight Opportunities Programme.

GECKO-LIKE MACHINES COULD SOON BE CRAWLING OVER OUR SATELLITES 

Alongside Nasa's efforts to create gecko-inspired adhesives, Esa has also turned the creates for inspiration in its own designs. 

The space agency has now created a tiny legged prototype that could be the forerunner of automatons which crawl along the hulls of spacecraft, cleaning and maintaining them.

Its footpads are covered with dry microfibres modelled on the toe hair of the gecko, which is celebrated for its ability to scuttle up windows and along walls yet not leave a trace.

The lizard does the trick through millions of ultra-fine hairs called setae, which interact with the climbing surface to create a molecular attraction known as the van der Waals force.

Researchers at Canada's Simon Fraser University first built a 240-gram (eight-ounce) tank-like gecko-bot, using tracks with microfibre treads.

They then developed this into a six-legged climbing robot, nicknamed Abigaille.

'This approach is an example of biomimicry, taking engineering solutions from the natural world,' said team leader Mike Henrey.

The dry adhesive that helps Abigaille climb walls has now been put through its paces at a materials-testing lab at ESA's European Space and Technology Centre (ESTEC) in Noordwijk, the Netherlands.

Replicating the vacuum and temperatures of space, but not the zero gravity, the tests found that the adhesive 'worked like a charm', the agency said. 

A wall-crawling robot inspired by the gecko has taken a small but important step towards a future in space. The tiny legged prototype could be the forerunner of automatons which crawl along the hulls of spacecraft, cleaning and maintaining them

A wall-crawling robot inspired by the gecko has taken a small but important step towards a future in space. The tiny legged prototype could be the forerunner of automatons which crawl along the hulls of spacecraft, cleaning and maintaining them

 



IFTTT

Put the internet to work for you.

Turn off or edit this Recipe

0 comments:

Post a Comment