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What Can Space Resources Do for Astronomy and Planetary Science?

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What Can Space Resources Do for Astronomy and Planetary Science? The Crisis in Astrophysics: .Commercial Space & Prudent Program Design Principles will let us Escape Martin Elvis Harvard-Smithsonian Center for Astrophysics Space Policy, in press. arXiv:1608.01004 Frontiers of Research in Astrophysics, PoS 2016, in press. arXiv: soon HDST critique: arXiv:1509.07798 Vigorous Explorer program (arXiv:0911.3383) Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] What Crisis? Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] Pan-Spectral Coverage is Integral to 21st Century Astrophysics • For 35 years we have had contemporaneous access to the full electromagnetic spectrum with matched sensitivity • Will be lost when JWST replaces Spitzer in 2018 • IR leap in sensitivity unmatched in UV, X-ray, Far-IR until ~2030+ • Observing Windows pried open in 50 years of space astronomy... • …will Close Messier 82 in optical, infrared and X-rays with Hubble, Spitzer and Chandra, NASA's three Great Observatories http://chandra.harvard.edu/photo/2006/m82/m82_comp.jpg Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] Even JWST Science will be in limbo without X-rays • What are those z=10-20 blobs in JWST Deep Fields? • The first stars in the first galaxies? • Or adolescent black holes having a growth spurt? • Without matched X-ray Deep Surveys how will you tell? Chandra Deep Field South – X-ray Image 4 Megasec Optical/near-IR = Galaxy Evolution X-rays = Black Hole Growth Thanks to Marta Volonteri Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] Cost growth has cut the number of large missions to 1 • Economy grows at 2% - 3% a year • Space mission costs grow far faster • Unsustainable: the “funding wall” Cost growth of leading X-ray astronomy missions 1970 - 1999 X-ray astronomy: 10% pa At ~$9B, JWST cannot be our model Details: Cost in constant 1999 US dollars: $20M for Uhuru (1970$); $100M for Einstein (1978$); $1.6B for Chandra (1999$),. H Tananbaum, private communication. (Inflation corrections from US Bureau of Labor Statistics; Next 10 Years of Chandra,URL: CfA, http://www.bls.gov/data/inflation_calculator.htm) August 2016 Martin Elvis, [email protected] Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] Elvis, Martin 2016 August CfA, Chandra, of Years 10 Next We have to get the cost down,cost the get have to We … or the party’s over party’s or the Iwf.org Two Responses 1. Harness Commercial Space 2. Adopt Prudent Principles for Program Design Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] 1. Harness Commercial Space Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] Commercial Space will be very different for the 2020 decadal Astronomy JWST US Astronomy JWST Next NASA Next NASA launch Decadal mission end? Astronomy Astronomy Survey $5B Flagship $9B Flagship ESA L3 ESA Cosmic Vision ATHENA ESA L3 selection 2035-2045?? ESA L2 ? (LISA) BepiColombo Year 2015 2020 2025 2030 2035 1/10 price launch? ⅕ price launch NEOCAM? End of ISS? ISRU@ARM Commercial Bigelow PRI, DSI ARRM boulder in Commercial Crew to ISS BA330 asteroid lunar Lunar orbit probes Orbit? Space, Test Test BA330 Lunar asteroid NewSpace HEO? Mining? Mining? Chang’e 4 Google Lunar X prize SELENE-2 SpaceIL, Moon Express… Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] Commercial Space Will Cut Mission Costs by 2025 • $10 k/kg to LEO for decades • SpaceX F-9: $3 k/kg Now • ~2k/kg with 1st stage reuse • 1/5 of traditional launch cost SpaceX Falcon 9 1st soft landing, 21 Dec 2015 (source: Space.com; wikimedia commons) Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] Cheaper Launch Now • Launch is ~25% of mission • 1/5 cost saves ~20% of astrophysics mission • Enables cheaper Spacecraft by spending mass • Orbital passenger flights enable: – Low cost TRL-9 tests of large instruments (extends rocket program) – Low cost on-orbit servicing in LEO Cheaper science payloads SpaceX F9 1st stage landing on Of Course I Still Love You Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] Cut Flagship Mission Costs in Half by 2025? •• TheseThese areare near-termnear-term changeschanges • • 20202020No DecadalDecadal SurveySurvey isis forfor >2025>2025 missionsmissions •• CannotCannotw ignoreignore commercialcommercial spacespace ~50% ~25% ~25% spacecraft launch payload Σ~100% 2025 25% 5% 5 1 % Σ~50% ~ Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] 2. Adopt Prudent Principles for Program Design Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] The Art in Choosing a Mission • Resources are always limited • Easy to Adopt an Over-Ambitious Science Goal • The art lies in choosing a mission that is: • Ambitious ~$5 B/decade • Achievable • Affordable • Need principles to help the selection process Background: NASA Astrophysics 20-year ‘sandchart’ Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] Prudent Principles for Program Design •• MissionsMissions requirerequire designdesign principlesprinciples toto avoidavoid failurefailure •• CanCan adoptadopt similarsimilar principlesprinciples forfor entireentire programprogram •• WithoutWithout guidingguiding principlesprinciples temptationtemptation ofof driftingdrifting toto “One“One GiantGiant Mission”Mission” isis strongstrong •• HereHere areare threethree guidingguiding principles…principles… temptation Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] #1: No Single Point Failure •• NoNo largelarge missionmission cancan havehave anyany component,component, sub-system,sub-system, oror systemsystem thatthat isis aa singlesingle pointpoint failurefailure:: •• i.e.i.e. missionmission endingending •• Likewise,Likewise, •• AA sciencescience programprogram shouldshould notnot havehave aa singlesingle pointpoint failurefailure •• OneOne BigBig MissionMission createscreates programprogram vulnerabilityvulnerability •• ProgramProgram lackslacks robustnessrobustness Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] #2: Science Requirements •• MissionsMissions beginbegin withwith sciencescience requirementsrequirements •• TheseThese areare thenthen flowedflowed downdown intointo missionmission requirementsrequirements •• AreAre therethere ScienceScience ProgramProgram requirementsrequirements?? E.gE.g.. 1.1. MatchedMatched contemporaneouscontemporaneous pan-spectrumpan-spectrum coveragecoverage •• FleetFleet ofof flagshipflagship missionsmissions 2.2. ContinuousContinuous InnovationInnovation •• E.g.E.g. exo-planets:exo-planets: aa majormajor Hubble,Hubble, SpitzerSpitzer researchresearch areaarea •• NotNot pioneeredpioneered onon Hubble,Hubble, SpitzerSpitzer •• IndependentIndependent scientistsscientists tooktook risksrisks toto pioneerpioneer fieldfield •• VigorousVigorous ExplorerExplorer programprogram ((arXiv:0911.3383arXiv:0911.3383)) Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] #3: No Single Viewpoint Failure •• DependenceDependence onon aa singlesingle FlagshipFlagship telescopetelescope sapssaps intellectualintellectual vitalityvitality ofof aa program.program. •• LackLack ofof independentindependent datadata toto challengechallenge resultsresults •• TimeTime andand MoneyMoney flowflow fromfrom oneone sourcesource •• FashionsFashions areare unintentionallyunintentionally self-reinforcingself-reinforcing •• TACsTACs havehave manymany previousprevious winnerswinners •• ProgramProgram needsneeds multiplemultiple viewpoints:viewpoints: •• WavelengthWavelength •• TechniqueTechnique •• ScaleScale Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] Implementation Issues •• Astro-sociological:Astro-sociological: •• GiantGiant missionsmissions getget aa largelarge followingfollowing •• SpeakSpeak louderlouder thanthan severalseveral lessless grandiosegrandiose missionsmissions •• Answer:Answer: •• HangHang togethertogether •• PromotePromote thethe ““GreaterGreater ObservatoriesObservatories”” •• Agency,Agency, GovernmentGovernment buy-in:buy-in: •• Agency:Agency: •• AdvocateAdvocate forfor prudentprudent ProgramProgram principlesprinciples •• CostCost ModelsModels areare rightlyrightly hardhard toto changechange •• FirstFirst trytry commercialcommercial pricingpricing onon probe-classprobe-class missionmission •• Government:Government: •• ““TheThe BestBest Mission”Mission” easiereasier thanthan aa wishwish listlist •• PromotePromote ““TheThe BestBest ProgramProgram”” insteadinstead Next 10 Years of Chandra, CfA, August 2016 Martin Elvis, [email protected] Summary: Escaping the Astronomy Funding Wall Crisis •• MissionMission costscosts risingrising farfar fasterfaster thanthan economyeconomy growsgrows •• ~10%~10% p.a.p.a. vs.vs. ~2%~2% p.a.p.a. fundingfunding wallwall •• UseUse CommercialCommercial SpaceSpace toto bringbring costscosts downdown •• FactorsFactors 2-32-3 plausibleplausible inin nextnext 55 –– 1010 yearsyears •• i.ei.e.. withinwithin decadaldecadal planningplanning horizonhorizon •• UnwiseUnwise toto ignoreignore •• UseUse PrudentPrudent DesignDesign PrinciplesPrinciples forfor thethe ProgramProgram •• AsAs forfor aa missionmission •• NoNo singlesingle pointpoint failurefailure •• ScienceScience Requirements,Requirements, flowdownflowdown •• NoNo singlesingle ViewpointViewpoint failurefailure ••
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