Might humans take a cue from bears and other hibernating animals and go to sleep for months or years at a time? While the technology is still in its infancy, a paper from the aerospace engineering company SpaceWorks Enterprises suggests that it could be possible in the next 10 to 20 years.
If a hibernation system can be made to work, it could potentially cut down on some of the risks of long-term space travel. We know from long-term missions on the International Space Station that bones and muscles weaken over time, although exercise has been shown to be a partial countermeasure. But there are other issues to consider, such as bringing along enough food, or keeping astronauts mentally engaged in a small space for months at a time.
If possible, hibernation would reduce these needs and keep astronauts healthy ahead of arriving to a destination like Mars, which would require a one-way journey of at least six months. Some science fiction stories suggest that hibernation could be used to prolong life on even longer voyages, such as the fictional voyage shown in the movie Passengers last year.
"Our concept is really inspired from a variety of sources, ranging from common depictions of long-term space travel in science fiction, to rare stories of human survival under extreme conditions (cold weather exposure, underwater submersion, airplane stowaways, etc.), and animal hibernation," said John Bradford, president and chief operating officer of SpaceWorks Enterprises and a co-author of the paper, in an e-mail to Seeker.
"In looking further into the question of hibernation, we identified a current medical practice of therapeutic hypothermia (or targeted temperature management, TTM) as a possible approach to sustaining long-term metabolic suppression and human stasis," he continued. "While we can't make humans actually hibernate, we believe we can mimic hibernation which is all we need."
RELATED: Boeing Unveils Lighter, Snazzy Spacesuit for Space Taxi Astronauts
SpaceWorks has secured early-stage funding for hibernation under the NASA Innovative Advanced Concepts program, which aims to nurture "visionary ideas that could transform future NASA missions with the creation of breakthroughs." NIAC offers funding for ideas that are beyond the reach of today's space technology but could be realized in a few decades.
SpaceWorks is creating the "technology roadmap" to figure out how to make hibernation possible, Bradford said. The first steps will be finding more funding for medical testing to do at home, potentially from foundations, private investors or government investors, such as NASA, the US Department of Defense, or the National Institutes of Health.
"Our technology is leveraging current medical treatments using mild hypothermia therapy and we plan to advance this capability to support prolonged metabolic suppression," Bradford said. "With only minor reductions in core body temperature, we can achieve significant reductions in metabolic rate."
"This approach opens up a variety of new options that can be introduced and applied that address major human spaceflight medical challenges and risk areas such as bone loss, muscle atrophy, increased intracranial pressure, and radiation damage," he added. "These new options range from enabling the habitat to carry additional radiation shielding due to other mass reductions, permitting the use of neuromuscular electrical stimulation to reduce muscle atrophy, and new approaches and configurations for inducing artificial gravity."
RELATED: SpaceX Must Still Prove That It Can Safely Launch Astronauts Into Space
The drawback is that we don't really understand how the human body responds to hibernation in space let alone to other known problems such as radiation. SpaceWorks is considering a range of other issues, including the increased risk of infection at catheter sites and the impact of long-term sedative use to suppress shivering as the body is being cooled.
SpaceWorks suggests that with the proper technology development and focus, the first human missions to Mars could employ some form of hibernation as soon as the early or mid-2030s. The company is considering a scenario where the passengers rotate between a few days of activity and a few weeks of hibernation during their 200-day voyage to Mars, with automated systems helping to monitor the spacecraft while the astronauts are out of commission.
The astronauts would work as usual on the Red Planet's surface, assuming a 500-day stay. Then they would again rotate between hibernation and activity during the 200-day voyage home.
"We believe human stasis represents one of the most promising approaches to solving the engineering and medical challenges of long-duration spaceflight," Bradford remarked. "System-level engineering analysis has indicated significant mass savings for both the space habitat and propulsive transfer stages. These savings are due to reductions in the pressurized volume, consumables, power, structures, and ancillary systems for the space habitat. The reduced mass then requires significantly less propellant to send the spacecraft to Mars (and back)."
The paper was presented at the 67 th International Astronautical Congress in Mexico last year.
WATCH: Why Astronauts Need This Cancer Shield in Space
See the original post here:
Hibernation for Deep-Space Exploration Could Happen Sooner Than You Imagined - Seeker
- Space exploration - Wikipedia, the free encyclopedia [Last Updated On: June 10th, 2016] [Originally Added On: June 10th, 2016]
- space exploration | Britannica.com [Last Updated On: June 16th, 2016] [Originally Added On: June 16th, 2016]
- Space Exploration News - Space News, Space Exploration ... [Last Updated On: June 16th, 2016] [Originally Added On: June 16th, 2016]
- Boy & Girl Scout Space Exploration Merit Badge [Last Updated On: July 21st, 2016] [Originally Added On: July 21st, 2016]
- Articles about Space Exploration - latimes [Last Updated On: July 21st, 2016] [Originally Added On: July 21st, 2016]
- ESA - Space for Kids - Life in Space - Space Exploration [Last Updated On: July 21st, 2016] [Originally Added On: July 21st, 2016]
- Space exploration New World Encyclopedia [Last Updated On: July 21st, 2016] [Originally Added On: July 21st, 2016]
- Space exploration - Wikipedia for Schools [Last Updated On: July 21st, 2016] [Originally Added On: July 21st, 2016]
- Space Exploration - National Archives and Records ... [Last Updated On: July 21st, 2016] [Originally Added On: July 21st, 2016]
- A Brief History of Space Exploration | The Aerospace ... [Last Updated On: July 21st, 2016] [Originally Added On: July 21st, 2016]
- Space Exploration: Crazy Far - Pictures, More From ... [Last Updated On: July 21st, 2016] [Originally Added On: July 21st, 2016]
- Space Exploration - Scientific American [Last Updated On: July 31st, 2016] [Originally Added On: July 31st, 2016]
- Cyprus Space Exploration Organisation (CSEO) [Last Updated On: November 21st, 2016] [Originally Added On: November 21st, 2016]
- European Space Agency - Wikipedia [Last Updated On: November 21st, 2016] [Originally Added On: November 21st, 2016]
- Space Exploration - U.S. Scouting Service Project [Last Updated On: November 25th, 2016] [Originally Added On: November 25th, 2016]
- Space exploration - Wikipedia [Last Updated On: November 29th, 2016] [Originally Added On: November 29th, 2016]
- 50 Years of Presidential Visions for Space Exploration [Last Updated On: January 29th, 2017] [Originally Added On: January 29th, 2017]
- Big Oil's Shortsighted Super Bowl Ad Gets Rocket Fuel Wrong - Inverse [Last Updated On: February 6th, 2017] [Originally Added On: February 6th, 2017]
- Obama gutted NASA. Here are 3 ways Trump can make space exploration great again - Conservative Review [Last Updated On: February 6th, 2017] [Originally Added On: February 6th, 2017]
- New 'Life' Trailer Brings Terrifying Thrills from Mars (Exclusive) - Space.com [Last Updated On: February 6th, 2017] [Originally Added On: February 6th, 2017]
- What Everyone Gets Wrong about Black History in the Space Age - Scientific American (blog) [Last Updated On: February 7th, 2017] [Originally Added On: February 7th, 2017]
- Space Exploration: Astronauts' Brains Are Changed By Spaceflight, MRI-Based Study Reveals - International Business Times [Last Updated On: February 7th, 2017] [Originally Added On: February 7th, 2017]
- Dassault Systemes Plans Space Exploration - I4U News [Last Updated On: February 7th, 2017] [Originally Added On: February 7th, 2017]
- Cassini Captures Stunning View of Enceladus | Space Exploration ... - Sci-News.com [Last Updated On: February 7th, 2017] [Originally Added On: February 7th, 2017]
- Dassault Systemes sets eyes on space exploration, faster transport - Economic Times [Last Updated On: February 7th, 2017] [Originally Added On: February 7th, 2017]
- TeamIndus launches Moonshot Wheels to inspire Indian rural ... - International Business Times, India Edition [Last Updated On: February 7th, 2017] [Originally Added On: February 7th, 2017]
- NASA Official Highlights Risk of Manned-Spacecraft Efforts - Wall Street Journal [Last Updated On: February 9th, 2017] [Originally Added On: February 9th, 2017]
- Cabinet briefed on India-Vietnam Framework Agreement on outer space exploration - Daily News & Analysis [Last Updated On: February 9th, 2017] [Originally Added On: February 9th, 2017]
- Belarus invites Iran to cooperate in pharmaceutical industry, space exploration - Belarus News (BelTA) [Last Updated On: February 9th, 2017] [Originally Added On: February 9th, 2017]
- New NASA Leadership Inherits Rejuvenated Space Exploration Program - eNews Park Forest [Last Updated On: February 10th, 2017] [Originally Added On: February 10th, 2017]
- What Will Space Exploration Look Like Under Trump? - Law Street Media (blog) [Last Updated On: February 10th, 2017] [Originally Added On: February 10th, 2017]
- Outgoing NASA Team Leaves Its Successors With Robust Options for Space Exploration - Center For American Progress [Last Updated On: February 11th, 2017] [Originally Added On: February 11th, 2017]
- Space exploration brought to life for pupils - Norfolk Eastern Daily Press [Last Updated On: February 11th, 2017] [Originally Added On: February 11th, 2017]
- Trump's Vision of Space Exploration - The New American [Last Updated On: February 11th, 2017] [Originally Added On: February 11th, 2017]
- Mechs and greater space exploration are on the way in Starbound's ... - PCGamesN [Last Updated On: February 13th, 2017] [Originally Added On: February 13th, 2017]
- Nuclear Reactors to Power Space Exploration - R & D Magazine [Last Updated On: February 14th, 2017] [Originally Added On: February 14th, 2017]
- NASA spends $2mn on 'advanced life support tech' for deep space travel - RT [Last Updated On: February 15th, 2017] [Originally Added On: February 15th, 2017]
- Celebrating Space Exploration - Science NetLinks [Last Updated On: February 15th, 2017] [Originally Added On: February 15th, 2017]
- Congress is told, again, that NASA's exploration plans aren't sustainable - Ars Technica [Last Updated On: February 17th, 2017] [Originally Added On: February 17th, 2017]
- Space Exploration: Could A Habitable Planet Feature A Habitable Moon? - Forbes [Last Updated On: February 17th, 2017] [Originally Added On: February 17th, 2017]
- Republicans Aim to Prioritize NASA Space Exploration Efforts Over Environmental Research - Independent Journal Review [Last Updated On: February 18th, 2017] [Originally Added On: February 18th, 2017]
- Turkmenistan Aims High as It Pledges Space Exploration - EurasiaNet [Last Updated On: February 18th, 2017] [Originally Added On: February 18th, 2017]
- One huge step: Trump's plans to privatize 'low Earth orbit' and send NASA into deep space - Yahoo News [Last Updated On: February 19th, 2017] [Originally Added On: February 19th, 2017]
- How reusable rockets are paving the way for the next phase of space exploration - Mirror.co.uk [Last Updated On: February 20th, 2017] [Originally Added On: February 20th, 2017]
- Space Startups Are Booming | Fortune.com - Fortune [Last Updated On: February 22nd, 2017] [Originally Added On: February 22nd, 2017]
- Mass Effect: Andromeda is About Building Meaningful Relationships and Space Exploration - SegmentNext [Last Updated On: February 22nd, 2017] [Originally Added On: February 22nd, 2017]
- Sen. Nelson Talks Space Exploration At Florida A&M University - WFSU [Last Updated On: February 22nd, 2017] [Originally Added On: February 22nd, 2017]
- Space exploration programs must continue - The Eagle [Last Updated On: February 22nd, 2017] [Originally Added On: February 22nd, 2017]
- NASA selects new technologies for flight tests for future space exploration - Space Daily [Last Updated On: February 23rd, 2017] [Originally Added On: February 23rd, 2017]
- Nuclear reactors to power space exploration - Los Alamos Monitor [Last Updated On: February 23rd, 2017] [Originally Added On: February 23rd, 2017]
- Editorial: Exploring other planets can help us understand our own - Longmont Times-Call [Last Updated On: February 24th, 2017] [Originally Added On: February 24th, 2017]
- Why Does NASA Suddenly Want Humans On New Spacecraft's First Flight? - Vocativ [Last Updated On: February 24th, 2017] [Originally Added On: February 24th, 2017]
- Should Humans Leave Space Exploration To Robots? - Forbes [Last Updated On: February 24th, 2017] [Originally Added On: February 24th, 2017]
- Space Exploration - WGN Radio [Last Updated On: February 25th, 2017] [Originally Added On: February 25th, 2017]
- EDITORIAL: Jumping at space travel - Indiana Daily Student [Last Updated On: February 26th, 2017] [Originally Added On: February 26th, 2017]
- NASA's focus on using humans in space exploration is myopic at best, apocalyptic at worst! - International Business Times, India Edition [Last Updated On: February 26th, 2017] [Originally Added On: February 26th, 2017]
- Guest view: Aliens in Earth's neighborhood? - Irondequoit Post [Last Updated On: February 26th, 2017] [Originally Added On: February 26th, 2017]
- Why the 'ultimate wearables' lie in the future of space exploration - Wareable [Last Updated On: February 28th, 2017] [Originally Added On: February 28th, 2017]
- Darlington power plant helps fuel NASA's space exploration - CTV News [Last Updated On: February 28th, 2017] [Originally Added On: February 28th, 2017]
- Donald Trump Will Call For a Return of Human Space Exploration - Inverse [Last Updated On: February 28th, 2017] [Originally Added On: February 28th, 2017]
- LEGO Announces 'Women of NASA' Set Celebrating Female Pioneers in Space Exploration - Babble (blog) [Last Updated On: March 1st, 2017] [Originally Added On: March 1st, 2017]
- What Donald Trump Said About Space Travel During His Speech - Heavy.com [Last Updated On: March 1st, 2017] [Originally Added On: March 1st, 2017]
- Trump's call for human space exploration is hugely wasteful and pointless - Los Angeles Times [Last Updated On: March 1st, 2017] [Originally Added On: March 1st, 2017]
- Annexation of Crimea beats space exploration as Russians' proudest moment - StopFake.org [Last Updated On: March 2nd, 2017] [Originally Added On: March 2nd, 2017]
- What is the fascination with space exploration? - Grand Valley Lanthorn [Last Updated On: March 2nd, 2017] [Originally Added On: March 2nd, 2017]
- Teachers attend space exploration conference, bring back lessons out of this world - Arlington Times [Last Updated On: March 4th, 2017] [Originally Added On: March 4th, 2017]
- Reader applauds space exploration pioneers - Fairfaxtimes.com [Last Updated On: March 4th, 2017] [Originally Added On: March 4th, 2017]
- Jeff Bezos Expected to Unveil Further Plans for Private Space Exploration - Wall Street Journal (subscription) [Last Updated On: March 5th, 2017] [Originally Added On: March 5th, 2017]
- Amazon Chief Bezos Expected to Unveil Further Private Space Exploration Plans - Fox Business [Last Updated On: March 6th, 2017] [Originally Added On: March 6th, 2017]
- When We Explore Space, We Go Together - Slate Magazine [Last Updated On: March 7th, 2017] [Originally Added On: March 7th, 2017]
- If India or China Beats the US to Mars, It Will Feel Like a Military Defeat - Slate Magazine [Last Updated On: March 7th, 2017] [Originally Added On: March 7th, 2017]
- Future Tense Newsletter: Space Exploration Isn't Just About Scientific Discovery - Slate Magazine (blog) [Last Updated On: March 8th, 2017] [Originally Added On: March 8th, 2017]
- How Barack Obama ruined NASA space exploration - The Hill (blog) [Last Updated On: March 8th, 2017] [Originally Added On: March 8th, 2017]
- A Trinity professor will play a big role in space exploration - thejournal.ie [Last Updated On: March 10th, 2017] [Originally Added On: March 10th, 2017]
- NASA Funds 133 Projects to Aid Deep Space Exploration - PC Magazine [Last Updated On: March 10th, 2017] [Originally Added On: March 10th, 2017]
- Congress Passes Space Exploration Act, Targets Mars - America Now [Last Updated On: March 11th, 2017] [Originally Added On: March 11th, 2017]
- Space Exploration: US congress approves $19.5 billion for NASA to get humans to Mars by 2033 - NTA News [Last Updated On: March 12th, 2017] [Originally Added On: March 12th, 2017]
- Otherworlds reveals visions of the solar system captured by robot spacecraft - ABC Online [Last Updated On: March 17th, 2017] [Originally Added On: March 17th, 2017]
- Exploring space on TV just as challenging - Arizona Daily Sun [Last Updated On: March 17th, 2017] [Originally Added On: March 17th, 2017]
- UBCO professor shortlisted for space exploration - Salmon Arm ... - Salmon Arm Observer [Last Updated On: March 17th, 2017] [Originally Added On: March 17th, 2017]