See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/327473763 Next Steps in Space Travel and Colonization: Terraforming, Ectogenesis, Nano Spacecraft and Avatars Article · August 2018 DOI: 10.31031/SBB.2018.02.000541 CITATIONS READS 2 509 1 author: Martin Braddock AstraZeneca 190 PUBLICATIONS 3,936 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: Space Science View project All content following this page was uploaded by Martin Braddock on 07 September 2018. The user has requested enhancement of the downloaded file. Significances of CRIMSON PUBLISHERS C Wings to the Research Bioengineering & Biosciences ISSN 2637-8078 Opinion Next Steps in Space Travel and Colonization: Terraforming, Ectogenesis, Nano Spacecraft and Avatars Martin Braddock* Mansfield and Sutton Astronomical Society, UK *Corresponding author: Nottinghamshire, UK, Tel: 07748-761258; Email: Martin Braddock, Sherwood Observatory, Mansfield and Sutton Astronomical Society, Coxmoor Road, Sutton-in-Ashfield, Submission: Published: August 27, 2018; August 31, 2018 Abstract The routine detection of exoplanets has started to yield a candidate list of new worlds potentially capable of harboring or sustaining life. To date 3775 exoplanets have been confirmed contained within 625 planetary systems. Of the 3775 planets, 55 are deemed suitable to support life of which 1 is subterran (0.1-0.5ME orth, 20180.4-0.8RE; [7,8] whichME=Earth will monitormass, and more RE=Earth than 200,000 radius), stars 22 arefor temporaryterran (0.5-5ME drops inor brightness0.8-1.5RE) caused and 32 by are planetary superterran transits (5- 10ME or 1.5-2.5RE) [1,2]. Facilitated in part to date by the Gaia [3,4] and Kepler space telescopes [5,6], the launch of the Transiting Exoplanet Survey Satellite (TESS) on April 18 ourfurther Solar increases system. whatHowever, is surely there a highlyis now likelygrowing outcome; evidence identification that the activities of a set ofof humanscandidates as offor 12,000yrs further exploration. ago and to Inthe 2018, present the dayprinciple have increaseddriver for extinctionidentification rates of of an many ’Earth species 2.0’, a and planet that very we are close experiencing to Earth characteristics the 6th extinction is scientific level event curiosity (ELE) or and the to Holocene determine extinction whether [9,10]. life exists The consequences in, or beyond of this latest ELE may add urgency to considering other planets for where mankind can migrate and settle, in part as a potential staging post for further exploration and in part as a failsafe should Earth become inhospitable to supporting life as we know it today. For both near (solar system) adaptation to microgravity are well understood and countermeasures for and mitigation of the effects of microgravity are being developed [11], and deep (beyond solar system) space travel, the ergonomic challenges facing manned spaceflight for both human physiological and psychological for reaching even the nearest stars with propulsion technologies available today and strategies are being considered which may prolong functional which include generation of artificial or simulated gravity in space [12-14]. The longevity of human lifespan is an as yet unsurmountable obstacle intelligence, design and deployment of nano spacecraft and the futuristic concept of sending humans as avatars on small lightweight spacecraft as anlifespan e-crew. [15]. Taken An together,alternative it is route possible to exploring to construct deep two space parallel is to lines deploy of thinking unmanned and spacesimple probes decision which matrices combine which the utilize evolving manned fields or ofunmanned artificial space craft and in the first review we will consider their application to both near and far distance space travel missions. Introduction the consequences of human activities on climate change [17-19]. Picture this scenario. Climate change, accentuated by human ELEs may also be caused by events that are out with our control activity has and will irrevocably alter the world we live in and today, such as an asteroid strike or atmospheric alteration by release we are undergoing the Earth’s 6th extinction level event (ELE)- of methane via a clathrate gun, eruption of a super-volcano or the Holocene event and studies have shown that the current rate depletion of selenium. The is evidence, for example linking volcanic of extinction of species is estimated at 100 to 1,000 times higher activity, selenium depletion, and asteroid strike and geomagnetic than natural background rates over the last 10,000yr [9,10]. The reversals with previous extinction level events [20,21] and taken inhabitable land mass of the Earth will decrease as sea levels rise together as our technology develops, it would seem prudent for our species to plan for the ultimate species migration; either to a weather extremes have led to crop failure and deforestation has and islands in the Pacific Ocean have disappeared [16]. Dramatic nearby or distant planet. destabilized soil structure in large swathes of arable land which have been washed away by heavy rain. Widespread food and water Proposed events enabling colonization, near and deep space travel of human civilization built over the last 5,000yr is under threat of shortages have triggered global conflict and the fabric and integrity Fourteen events or activities have been considered which disintegration. Clearly this is, hopefully, an overly negative scenario and mitigation measures are in place around the globe to minimize worlds (Table 1) and some of these have been presented in a may influence if not drive our ability to reach and colonise other Volume 2 - Issue - 4 Copyright © All rights are reserved by Martin Braddock. 1/7 Significances Bioeng Biosci Copyright © Martin Braddock previous publication [15]. The likelihood and potential impact to be achievable today (Table 1a) and over the next 100yr (Table of these events will be discussed within this review which will 1b) and draw where possible on substantiating evidence from the permit a comparison and a useful summary as a basis for further scientific literature, taking licence where necessary to speculate on research.Table 1a: I willProposed attempt events to set thisenabling in the contextspace travel of what and I believe colonization the nature for an of futurearbitrary scientific date developments.in 2018. A Impact Negligible Minor Moderate Significant Major Very likely - Media hype or falsehood - Exoplanet candidate ID Likely - Travel to Mars - - Likelihood AG generation in space Possible - Nano spacecraft deployment Colonisation of Mars - Unlikely - Ectogenesis Hibernation Negligible senescence - - Terraforming Cryogenics Very unlikely - - Mind uploading Worldships (FTL) travel Manned Interstellar Table 1b: Proposed events enabling space travel and colonization for an arbitrary date in 2118. B Impact Negligible Minor Moderate Significant Major Very likely Travel to Mars AGColonisation generation of in Mars space Exoplanet candidate ID Nano spacecraft deployment Likely Hibernation Likelihood Mind uploading and data retrieval Media hype or Possible Ectogenesis Negligible senescence falsehood Unlikely Terraforming Worldships Very unlikely Cryogenics travel Manned Interstellar (FTL) Parallel thought processes for design options enabling near and deep space travel and colonization Figure 1A: Future design option accessories and decision matrices for manned spacecraft. Volume 2 - Issue - 4 How to cite this article: Martin B. Next Steps in Space Travel and Colonization: Terraforming, Ectogenesis, Nano Spacecraft and Avatars. Significances 2/7 Bioeng Biosci.2(4). SBB.000541.2018. DOI: 10.31031/SBB.2018.02.000541 Significances Bioeng Biosci Copyright © Martin Braddock Figure 1 considers potential option accessories for both manned and unmanned spacecraft and a simple decision matrix agencies to safely develop and adapt a spacecraft to provide a Research [13] which describes the ambition for multiple space for each process. Although options are considered separately habitatFor inunmanned which astronauts spacecraft will experience(Figure 1B), AG. two options are options would be deployed, for example space based ectogenesis for manned spacecraft travel (Figure 1A), it is likely that several considered, both involve nano spacecraft which are discussed in and other routes to extend life summarised previously [15] may more detail below and the first option is without and the second need to be complemented by an environment of artificial gravity With our present level of technology, a nano spacecraft lacking an to act as a countermeasure to the effects of microgravity appears option is with a higher form of artificial intelligence (AI) or avatar. (AG). Out of the accessorized options presented, deployment of AG the most favourable option and this is consistent with the recent next 100yr and is also further discussed below. AI payload is more favorable, this is expected to change over the announcement of an International Roadmap for Artificial Gravity Figure 1B: Future design option accessories and decision matrices for unmanned spacecraft. Terraforming the solar system locked within the planet which when released would produce an atmosphere of ~7% that of Earth which would not provide enough Terraforming is the process whereby the atmospheric composition, temperature, pressure and surface topology of a today’s technology, that Mars is no longer