When science fiction becomes reality! Dune-inspired spacesuit transforms astronauts' urine into drinking water within minutes

  • The spacesuit is inspired by the 'stillsuits' featured in the Dune franchise
  • It features a filtration system that recycles urine into drinking water in minutes 

The idea of drinking your own urine might sound like a survival technique promoted by Bear Grylls.

But it could soon become a reality for astronauts, thanks to a new Dune-inspired spacesuit.

The spacesuit is the brainchild of researchers from Cornell University and features a futuristic device that can recycle urine into drinking water.

While the suit is still a prototype, it could be a godsend for astronauts, who are currently forced to relieve themselves inside their spacesuits during long spacewalks.

'The design includes a vacuum-based external catheter leading to a combined forward-reverse osmosis unit, providing a continuous supply of potable water with multiple safety mechanisms to ensure astronaut wellbeing,' said Sofia Etlin, first author of the study.

The idea of drinking your own urine might sound like a survival technique promoted by Bear Grylls . But it could soon become a reality for astronauts, thanks to a new Dune-inspired spacesuit

The idea of drinking your own urine might sound like a survival technique promoted by Bear Grylls . But it could soon become a reality for astronauts, thanks to a new Dune-inspired spacesuit

The researchers turned to the Dune franchise, which features full-body 'stillsuits' that can absorb and purify water lost through sweating and urination

The researchers turned to the Dune franchise, which features full-body 'stillsuits' that can absorb and purify water lost through sweating and urination

How does it work?

  1. The device includes a flexible undergarment and connects to a silicone collection cup, which fits around the genitalia.
  2. The inner face of the collection cup is lined with a polyester microfiber and draws urine away from the body.
  3. An RFID tag, linked to an absorbent hydrogel, reacts to moisture by activating a vacuum pump, which swiftly sucks up the urine.
  4. Once the urine has been collected, it's diverted to a filtration system which removes the water from the urine.   
  5. The purified water is then enriched with electrolytes and pumped into an in-suit drink bag, which astronauts can drink from. 
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On board the International Space Station, astronauts can urinate by strapping themselves to a toilet, which features a suction system.

There, their urine can also be collected and recycled into drinkable water.

However, during lengthy spacewalks, astronauts are currently forced to wear large nappies known as maximum absorbency garments (MAGs).

This is not only uncomfortable, but is also wasteful, as the urine cannot be recycled.

'The MAG has reportedly leaked and caused health issues such as urinary tract infections and gastrointestinal distress,' Dr Etlin explained.

'Additionally, astronauts currently have only one liter of water available in their in-suit drink bags.

'This is insufficient for the planned, longer-lasting lunar spacewalks, which can last ten hours, and even up to 24 hours in an emergency.'

In the hopes of combatting this issue, the researchers turned to the Dune franchise, which features full-body 'stillsuits' that can absorb and purify water lost through sweating and urination.

With these stillsuits in their minds as inspiration, the researchers designed a urine collective device.

The device includes a flexible undergarment and connects to a silicone collection cup, which fits around the genitalia

The device includes a flexible undergarment and connects to a silicone collection cup, which fits around the genitalia

Despite being fairly complex, the system measures just 38 x 23 x 23cm and weighs around 17lbs (8kg), which makes it the ideal size to fit in a backpack

Despite being fairly complex, the system measures just 38 x 23 x 23cm and weighs around 17lbs (8kg), which makes it the ideal size to fit in a backpack

The device includes a flexible undergarment and connects to a silicone collection cup, which fits around the genitalia.

The inner face of the collection cup is lined with a polyester microfiber and draws urine away from the body.

An RFID tag, linked to an absorbent hydrogel, reacts to moisture by activating a vacuum pump, which swiftly sucks up the urine.

Once the urine has been collected, it's diverted to a filtration system which removes the water from the urine.   

The purified water is then enriched with electrolytes and pumped into an in-suit drink bag, which astronauts can drink from. 

Now that the prototype (pictured) is ready, the researchers hope to soon test it with real astronauts

Now that the prototype (pictured) is ready, the researchers hope to soon test it with real astronauts

According to the team, collecting and purifying 500ml of urine takes just five minutes.

Despite being fairly complex, the system measures just 38 x 23 x 23cm and weighs around 17lbs (8kg), which makes it the ideal size to fit in a backpack. 

Now that the prototype is ready, the researchers hope to soon test it with real astronauts.  

Dr Christopher Mason, lead author of the study, said: 'Our system can be tested in simulated microgravity conditions, as microgravity is the primary space factor we must account for. 

'These tests will ensure the system's functionality and safety before it is deployed in actual space missions.'

HOW DO ASTRONAUTS GO TO THE TOILET?

On board the ISS there is a toilet which has several attachments.

As there is no gravity in space, liquids do not flow but accumulate in floating globules.

To counter this problem, there are hoses which are used and provide pressure to suck the fluid from the body.

Each astronaut has their own personal attachment.

When a toilet is not available or the astronaut is on a space-walk, the astronauts use MAGs (maximum absorbency garments) which are diapers that soak up all the waste.

They are effective for short missions but have been known to leak occasionally.  

Nasa is aiming to develop a suit which allows for long-term spacesuit usage and complete independent disposal of human waste. 

On the moon missions there was no toilet and the all-male crew had 'condom catheter's that attached to the penis and the fluid was fed to a bag that resided outside of the suit.  

According to an 1976 interview with astronaut Rusty Schweickart, the condom catheters came in three sizes: small, medium and large. 

Despite the practical advantages of having the right size, the astronauts often ordered the large ones and this resulted in a leakage of urine in the suit.

To combat this, Nasa renamed the sizes as large, gigantic, and humongous to appease the male ego. 

There has yet to be an effective female equivalent developed, something Nasa aims to change for the Orion missions.