Why I Know God Exists

Total Page:16

File Type:pdf, Size:1020Kb

Why I Know God Exists WHY I KNOW GOD EXISTS JoLynn Gower 493-6151 [email protected] 1 VERSE FOR THE JOURNEY • Colossians 1:16-17 For by Him all things were created, both in the heavens and on earth, visible and invisible, whether thrones or dominions or rulers or authorities—all things have been created through Him and for Him. He is before all things, and in Him all things hold together. • Hebrews 1:1-3 God, after He spoke long ago to the fathers in the prophets in many portions and in many ways, in these last days has spoken to us in His Son, whom He appointed heir of all things, through whom also He made the world. And He is the radiance of His glory and the exact representation of His nature, and upholds all things by the word of His power. When a mind is ready to receive them, nothing can change it like the facts. Fred Heeren 2 WHAT IS THE GOLDILOCKS ZONE • The region around a star that has the right conditions to find liquid water on the planet surface is called the “Goldlilocks zone” • The planet isn’t “too hot” or “too cold.” It is “just right.” • TWO WAYS THAT SCIENTISTS ARE SEARCHING FOR INTELLIGENT LIFE IN THE UNIVERSE: 1. Looking for other planets with a goldilocks zone outside our solar system (exoplanets) 2. SETI: Search for Extraterrestrial Intelligence by listening/looking for intelligent signals with a radio telescope • PRIVATE FUNDERS: Arthur C. Clark, Paul Allen (Microsoft), Gordon Moore (Intel), David Packard and William Hewlett (HP) 3 PROJECT PHOENIX Parkes, New South Wales, Australia 1995-96 Green Bank, West Virginia 1996-98 Arecibo, Puerto Rico 1998-2004 4 FERMI PARADOX • Fermi realized that any civilization with a modest amount of rocket technology and an immodest amount of imperial incentive could rapidly colonize the entire Galaxy. Within ten million years, every star system could be brought under the wing of an empire. Ten million years may sound long, but in fact it's quite short compared with the age of the Galaxy, which is roughly ten thousand million years. Colonization of the Milky Way should be a quick exercise. • So what Fermi immediately realized was that the aliens have had more than enough time to pepper the Galaxy with their presence. But looking around, he didn't see any clear indication that they're out and about. This prompted Fermi to ask what was (to him) an obvious question: "where is everybody5 ?" SETI FINDINGS • SETI set out to search about 1000 stars within 200 light- years of our solar system • Going star by star, they were listening for narrow frequency signals which, in their minds, would suggest intelligence sourcing • 2/3 of the 1000 were searched with no success • 56 years since Frank Drake (founder of SETI) began listening; so far, no intelligent life has been confirmed • Robert Jastrow, founder of NASA Goddard Institute and director of Mt. Wilson Observatory (1925-2008) once believed that we are part of a “large cosmic community” • Jastrow believed that the Big Bang “leaves room for God” although he professed to be agnostic6 JASTROW’S FAMOUS QUOTES • “At this moment it seems as though science will never be able to raise the curtain on the mystery of creation. For the scientist who has lived by his faith in the power of reason, the story ends like a bad dream. He has scaled the mountains of ignorance; he is about to conquer the highest peak; as he pulls himself over the final rock, he is greeted by a band of theologians who have been sitting there for centuries.” • “Astronomers now find they have painted themselves into a corner because they have proven, by their own methods, that the world began abruptly in an act of creation to which you can trace the seeds of every star, every planet, every living thing in this cosmos and on the earth. And they have found that all this happened as a product of forces they cannot hope to discover. That there are what I or anyone would call supernatural forces at work is now, I think, a scientifically proven fact.” 7 EXOPLANETS • The Kepler Space Telescope, “Kepler” was launched in 2009 • The exoplanet candidate count was 4696 as of 10/24/2013 • The confirmed count was 2331 • 21 of those have “small habitable zones” • Kepler became unusable in 2013 but creative thinking allowed it to continue; the new mission is known as K2 • Exoplanet candidate count in K2 is 458 • Confirmed count is 173 • Kepler 186f was the first habitable planet in the habitable zone • Kepler 452b has now been discovered to be the most earth-sized planet in a habitable zone with a star similar to our sun 8 BREAKTHROUGH LISTEN • In 2015, Stephen Hawking and Yuri Milner, founder of the Breakthrough Prize, announced Breakthrough Listen • This initiative was funded by Milner at 100 million dollars for the first ten years • Mark Zuckerberg is another investor, along with others from the Silicon valley. • The Breakthrough Prize is given in the fields of mathematics, fundamental physics and life sciences • The annual award began in 2012 and is 3 million dollars 9 ARE WE UNIQUE? • Superstring theory now believes there to be 10 dimensions and possibly 11 • Boson string theory suggests up to 26 dimensions • We live in three of these plus time as a fourth • What makes us godlike? 1. triune nature 2. spiritual nature 3. intellectual abilities above animals, etc. • Genesis 2:7 Then the LORD God formed man of dust from the ground, and breathed into his nostrils the breath of life; and man became a living being. • Psuche: breath/animal principal only; pneuma: spirit; rational-immortal soul; zoe: life generally, even plants • In Hebrew: nephesh; ruwach; chay • Being: nephesh • Living: chay 10 DOES THE BIBLE SPEAK OF “THEM” • The Bible clearly speaks of other creations that operate in other dimensions • Luke 2:13 And suddenly there appeared with the angel a multitude of the heavenly host praising God and saying…. • Hebrews 13:2 Do not neglect to show hospitality to strangers, for by this some have entertained angels without knowing it. (Abraham and Lot for example) • Angels clearly usually live in another dimension; however, they can manifest in our dimensions when sent and can even take human form • Ephesians 6:12 For our struggle is not against flesh and blood, but against the rulers, against the powers, against the world forces of this darkness, against the spiritual forces of wickedness in the heavenly places. 11 OTHER “DIMENSIONAL” VERSES • John 18:36 Pilate answered, "I am not a Jew, am I? Your own nation and the chief priests delivered You to me; what have You done?” Jesus answered, "My kingdom is not of this world. If My kingdom were of this world, then My servants would be fighting so that I would not be handed over to the Jews; but as it is, My kingdom is not of this realm." • Colossians 1:15-16 He is the image of the invisible God, the firstborn of all creation. For by Him all things were created, both in the heavens and on earth, visible and invisible, whether thrones or dominions or rulers or authorities—all things have been created through Him and for Him. 12 OTHER “DIMENSIONAL” VERSES • 2 Kings 6:16-18 So he answered, "Do not fear, for those who are with us are more than those who are with them." Then Elisha prayed and said, "O LORD, I pray, open his eyes that he may see." And the LORD opened the servant's eyes and he saw; and behold, the mountain was full of horses and chariots of fire all around Elisha. • Acts 7:55-56 But being full of the Holy Spirit, he gazed intently into heaven and saw the glory of God, and Jesus standing at the right hand of God; and he said, "Behold, I see the heavens opened up and the Son of Man standing at the right hand of God." • John 1:49-51 Jesus answered and said to him, "Because I said to you that I saw you under the fig tree, do you believe? You will see greater things than these.” And He said to him, "Truly, truly, I say to you, you will see the heavens opened and the angels of God ascending and descending on the Son of Man."13 .
Recommended publications
  • The Copernican Principle Rules out BLC1 As a Technological Radio Signal from the Alpha Centauri System
    Draft version January 13, 2021 Typeset using LATEX twocolumn style in AASTeX62 The Copernican Principle Rules Out BLC1 as a Technological Radio Signal from the Alpha Centauri System Amir Siraj1 and Abraham Loeb1 1Department of Astronomy, Harvard University, 60 Garden Street, Cambridge, MA 02138, USA ABSTRACT Without evidence for occupying a special time or location, we should not assume that we inhabit privileged circumstances in the Universe. As a result, within the context of all Earth-like planets orbiting Sun-like stars, the origin of a technological civilization on Earth should be considered a single outcome of a random process. We show that in such a Copernican framework, which is inherently optimistic about the prevalence of life in the Universe, the likelihood of the nearest star system, Alpha Centauri, hosting a radio-transmitting civilization is ∼ 10−8. This rules out, a priori, Breakthrough Listen Candidate 1 (BLC1) as a technological radio signal from the Alpha Centauri system, as such a scenario would violate the Copernican principle by about eight orders of magnitude. We also show that the Copernican principle is consistent with the vast majority of Fast Radio Bursts being natural in origin. Keywords: technosignatures; astrobiology; search for extraterrestrial intelligence; biosignatures 1. INTRODUCTION lihood of searches for primitive and intelligent life, us- The Copernican principle asserts that we are not priv- ing a Drake-type approach. Westby & Conselice(2020) ileged observers of the Universe. Successes of its appli- applied the Copernican principle to the search for intel- cation include the rejection of Ptolemaic geocentrism ligent life, but in forms that featured strict boundaries and the adoption of the modern cosmological princi- in time, thereby not reflecting a truly random process.
    [Show full text]
  • Astrobiology and the Search for Life Beyond Earth in the Next Decade
    Astrobiology and the Search for Life Beyond Earth in the Next Decade Statement of Dr. Andrew Siemion Berkeley SETI Research Center, University of California, Berkeley ASTRON − Netherlands Institute for Radio Astronomy, Dwingeloo, Netherlands Radboud University, Nijmegen, Netherlands to the Committee on Science, Space and Technology United States House of Representatives 114th United States Congress September 29, 2015 Chairman Smith, Ranking Member Johnson and Members of the Committee, thank you for the opportunity to testify today. Overview Nearly 14 billion years ago, our universe was born from a swirling quantum soup, in a spectacular and dynamic event known as the \big bang." After several hundred million years, the first stars lit up the cosmos, and many hundreds of millions of years later, the remnants of countless stellar explosions coalesced into the first planetary systems. Somehow, through a process still not understood, the laws of physics guiding the unfolding of our universe gave rise to self-replicating organisms − life. Yet more perplexing, this life eventually evolved a capacity to know its universe, to study it, and to question its own existence. Did this happen many times? If it did, how? If it didn't, why? SETI (Search for ExtraTerrestrial Intelligence) experiments seek to determine the dis- tribution of advanced life in the universe through detecting the presence of technology, usually by searching for electromagnetic emission from communication technology, but also by searching for evidence of large scale energy usage or interstellar propulsion. Technology is thus used as a proxy for intelligence − if an advanced technology exists, so to does the ad- vanced life that created it.
    [Show full text]
  • Westminsterresearch the Astrobiology Primer V2.0 Domagal-Goldman, S.D., Wright, K.E., Adamala, K., De La Rubia Leigh, A., Bond
    WestminsterResearch http://www.westminster.ac.uk/westminsterresearch The Astrobiology Primer v2.0 Domagal-Goldman, S.D., Wright, K.E., Adamala, K., de la Rubia Leigh, A., Bond, J., Dartnell, L., Goldman, A.D., Lynch, K., Naud, M.-E., Paulino-Lima, I.G., Kelsi, S., Walter-Antonio, M., Abrevaya, X.C., Anderson, R., Arney, G., Atri, D., Azúa-Bustos, A., Bowman, J.S., Brazelton, W.J., Brennecka, G.A., Carns, R., Chopra, A., Colangelo-Lillis, J., Crockett, C.J., DeMarines, J., Frank, E.A., Frantz, C., de la Fuente, E., Galante, D., Glass, J., Gleeson, D., Glein, C.R., Goldblatt, C., Horak, R., Horodyskyj, L., Kaçar, B., Kereszturi, A., Knowles, E., Mayeur, P., McGlynn, S., Miguel, Y., Montgomery, M., Neish, C., Noack, L., Rugheimer, S., Stüeken, E.E., Tamez-Hidalgo, P., Walker, S.I. and Wong, T. This is a copy of the final version of an article published in Astrobiology. August 2016, 16(8): 561-653. doi:10.1089/ast.2015.1460. It is available from the publisher at: https://doi.org/10.1089/ast.2015.1460 © Shawn D. Domagal-Goldman and Katherine E. Wright, et al., 2016; Published by Mary Ann Liebert, Inc. This Open Access article is distributed under the terms of the Creative Commons Attribution Noncommercial License (http://creativecommons.org/licenses/by- nc/4.0/) which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. The WestminsterResearch online digital archive at the University of Westminster aims to make the research output of the University available to a wider audience.
    [Show full text]
  • Monday, November 13, 2017 WHAT DOES IT MEAN to BE HABITABLE? 8:15 A.M. MHRGC Salons ABCD 8:15 A.M. Jang-Condell H. * Welcome C
    Monday, November 13, 2017 WHAT DOES IT MEAN TO BE HABITABLE? 8:15 a.m. MHRGC Salons ABCD 8:15 a.m. Jang-Condell H. * Welcome Chair: Stephen Kane 8:30 a.m. Forget F. * Turbet M. Selsis F. Leconte J. Definition and Characterization of the Habitable Zone [#4057] We review the concept of habitable zone (HZ), why it is useful, and how to characterize it. The HZ could be nicknamed the “Hunting Zone” because its primary objective is now to help astronomers plan observations. This has interesting consequences. 9:00 a.m. Rushby A. J. Johnson M. Mills B. J. W. Watson A. J. Claire M. W. Long Term Planetary Habitability and the Carbonate-Silicate Cycle [#4026] We develop a coupled carbonate-silicate and stellar evolution model to investigate the effect of planet size on the operation of the long-term carbon cycle, and determine that larger planets are generally warmer for a given incident flux. 9:20 a.m. Dong C. F. * Huang Z. G. Jin M. Lingam M. Ma Y. J. Toth G. van der Holst B. Airapetian V. Cohen O. Gombosi T. Are “Habitable” Exoplanets Really Habitable? A Perspective from Atmospheric Loss [#4021] We will discuss the impact of exoplanetary space weather on the climate and habitability, which offers fresh insights concerning the habitability of exoplanets, especially those orbiting M-dwarfs, such as Proxima b and the TRAPPIST-1 system. 9:40 a.m. Fisher T. M. * Walker S. I. Desch S. J. Hartnett H. E. Glaser S. Limitations of Primary Productivity on “Aqua Planets:” Implications for Detectability [#4109] While ocean-covered planets have been considered a strong candidate for the search for life, the lack of surface weathering may lead to phosphorus scarcity and low primary productivity, making aqua planet biospheres difficult to detect.
    [Show full text]
  • 2015 October
    TTSIQ #13 page 1 OCTOBER 2015 www.nasa.gov/press-release/nasa-confirms-evidence-that-liquid-water-flows-on-today-s-mars Flash! Sept. 28, 2015: www.space.com/30674-flowing-water-on-mars-discovery-pictures.html www.space.com/30673-water-flows-on-mars-discovery.html - “boosting odds for life!” These dark, narrow, 100 meter~yards long streaks called “recurring slope lineae” flowing downhill on Mars are inferred to have been formed by contemporary flowing water www.space.com/30683-mars-liquid-water-astronaut-exploration.html INDEX 2 Co-sponsoring Organizations NEWS SECTION pp. 3-56 3-13 Earth Orbit and Mission to Planet Earth 13-14 Space Tourism 15-20 Cislunar Space and the Moon 20-28 Mars 29-33 Asteroids & Comets 34-47 Other Planets & their moons 48-56 Starbound ARTICLES & ESSAY SECTION pp 56-84 56 Replace "Pluto the Dwarf Planet" with "Pluto-Charon Binary Planet" 61 Kepler Shipyards: an Innovative force that could reshape the future 64 Moon Fans + Mars Fans => Collaboration on Joint Project Areas 65 Editor’s List of Needed Science Missions 66 Skyfields 68 Alan Bean: from “Moonwalker” to Artist 69 Economic Assessment and Systems Analysis of an Evolvable Lunar Architecture that Leverages Commercial Space Capabilities and Public-Private-Partnerships 71 An Evolved Commercialized International Space Station 74 Remembrance of Dr. APJ Abdul Kalam 75 The Problem of Rational Investment of Capital in Sustainable Futures on Earth and in Space 75 Recommendations to Overcome Non-Technical Challenges to Cleaning Up Orbital Debris STUDENTS & TEACHERS pp 85-96 Past TTSIQ issues are online at: www.moonsociety.org/international/ttsiq/ and at: www.nss.org/tothestarsOO TTSIQ #13 page 2 OCTOBER 2015 TTSIQ Sponsor Organizations 1.
    [Show full text]
  • Fermi's Paradox Is a Daunting Problem – Under Whatever Label
    Fermi's Paradox Is a Daunting Problem – Under Whatever Label Milan M. Dirkovid1 Astronomical Observatory of Belgrade, Volgina 7, 11000 Belgrade, Serbia 1. Introduction Gray (2015) argued that Fermi's paradox (FP) is a misnomer, and it is not a valid paradox. Gray also speculated that the argument was misattributed to Fermi, whose lunchtime remarks did not pertain to the existence of extraterrestrial intelligence, but to the feasibility of interstellar travel. Instead, the paradox is ascribed to Hart and Tipler, and it is further suggested that the paradox is not a “real” problem or research subject and should not be used in debates about SETI projects. The arguments given are unpersuasive, ahistorical, and, in at least one instance, clearly hinge on literalistic and uncharitable reading of evidence. Instead, I argue the following three points: (i) Contrary to Gray’s assertion, the historical issue of naming of ideas or concepts is completely divorced from their epistemic status. (ii) FP is easily and smoothly generalized into the “Great Silence” paradox, so it makes no sense either theoretically or empirically to separate the two. (iii) In sharp contrast to the main implication of Gray’s paper, FP has become more aggravated lately due to advances in astrobiology. Research that deals with FP has greatly expanded in recent years on both a theoretical and observational stage (Davies 2010, 2012; Vukotid and Dirkovid 2012; Barlow 2013; Hair and Hedman 2013; Davies and Wagner 2013; Armstrong and Sandberg 2013; Lampton 2013; Cartin 2014; Nunn, Guy, and Bell 2014; Wright et al. 2014; Spivey 2015; Griffith et al.
    [Show full text]
  • Arxiv:1910.06396V4 [Physics.Pop-Ph] 12 Jun 2021 ∗ Rmtv Ieeitdi H R-Oa Eua(Vni H C System)
    Nebula-Relay Hypothesis: Primitive Life in Nebula and Origin of Life on Earth Lei Feng1,2, ∗ 1Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023 2Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing University – Purple Mountain Observatory, Nanjing 210093, China Abstract A modified version of panspermia theory, named Nebula-Relay hypothesis or local panspermia, is introduced to explain the origin of life on Earth. Primitive life, acting as the seeds of life on Earth, originated at pre-solar epoch through physicochemical processes and then filled in the pre- solar nebula after the death of pre-solar star. Then the history of life on the Earth can be divided into three epochs: the formation of primitive life in the pre-solar epoch; pre-solar nebula epoch; the formation of solar system and the Earth age of life. The main prediction of our model is that primitive life existed in the pre-solar nebula (even in the current nebulas) and the celestial body formed therein (i.e. solar system). arXiv:1910.06396v4 [physics.pop-ph] 12 Jun 2021 ∗Electronic address: [email protected] 1 I. INTRODUCTION Generally speaking, there are several types of models to interpret the origin of life on Earth. The two most persuasive and popular models are the abiogenesis [1, 2] and pansper- mia theory [3]. The modern version of abiogenesis is also known as chemical origin theory introduced by Oparin in the 1920s [1], and Haldane proposed a similar theory independently [2] at almost the same time. In this theory, the organic compounds are naturally produced from inorganic matters through physicochemical processes and then reassembled into much more complex living creatures.
    [Show full text]
  • Fermi Paradox: a Simulation Solution YU HAIHAN, MARK
    Fermi Paradox: a simulation solution YU HAIHAN, MARK Introduction The paradox was proposed by Fermi in 1950 during a lunch with Edward Teller, Hilbert York and Emil Konopinski. When they were talking about mundane topics, Fermi asked a question:”Where is everybody?”(Webb, 2002) His partners immediately understood what he was talking about: If the extraterrestrial civilization exists, why we have not met them till now? If we believe that there is nothing special about earth and solar system, there should be other civilizations in the universe as its enormous size containing countless probabilities. Under such assumptions, the paradox occurred. To provide a forceful explanation, many efforts have been paid on the analysis on Drake equation. Drake equation: The number of civilization in the universe is represented by N. To estimate it, we need to know the yearly rate R at which stars forms the galaxy; the probability fp of stars that possess planets; the number ne of planets with suitable environment for life; the probability fl of suitable planets on which life actually develops; the probability fi of these planets on which develops intelligence; the probability fc of these intelligence that could communicate with other civilizations and the time L that such a culture would devote to communication (Webb, 2002). Though the equation is complicated as above, it can be just divided into 3 main factors. Consider the following equation: n=Npq This equation is provided by Professor David Aldous, which can be viewed as a simple version of Drake equation. In this equation, N is the number of suitable planets for life; p is the chance that an intelligence species would develop a capability to communicate with others and q the chance that such a species would survive in such a way as to be observable (Aldous, 2010).
    [Show full text]
  • 1 the SUSTAINABILITY SOLUTION to the FERMI PARADOX Jacob D
    THE SUSTAINABILITY SOLUTION TO THE FERMI PARADOX Jacob D. Haqq-Misra∗ Department of Meteorology & Astrobiology Research Center The Pennsylvania State University Seth D. Baum Department of Geography & Rock Ethics Institute The Pennsylvania State University No present observations suggest a technologically advanced extraterrestrial intelligence (ETI) has spread through the galaxy. However, under commonplace assumptions about galactic civilization formation and expansion, this absence of observation is highly unlikely. This improbability is the heart of the Fermi Paradox. The Fermi Paradox leads some to conclude that humans have the only advanced civilization in this galaxy, either because civilization formation is very rare or because intelligent civilizations inevitably destroy themselves. In this paper, we argue that this conclusion is premature by introducing the “Sustainability Solution” to the Fermi Paradox, which questions the Paradox’s assumption of faster (e.g. exponential) civilization growth. Drawing on insights from the sustainability of human civilization on Earth, we propose that faster-growth may not be sustainable on the galactic scale. If this is the case, then there may exist ETI that have not expanded throughout the galaxy or have done so but collapsed. These possibilities have implications for both searches for ETI and for human civilization management. ∗ Email address: [email protected] 1 1. INTRODUCTION The classic Fermi Paradox can lead to the conclusion that humans have formed the first advanced civilization in the galaxy because extraterrestrial intelligence (ETI) has not yet been observed [1]. Numerous resolutions to this paradox have been proposed [2], spanning the range of cosmological limits to sociological assumptions. A popular class of solutions assumes that the evolution of life is rare in the Universe: Earth may not be wholly unique, but other inhabited planets in the Universe could be too far away for any interaction or detection [3].
    [Show full text]
  • Dissolving the Fermi Paradox), and Quite Likely Once We Account for the Fermi Observation
    Dissolving the Fermi Paradox Anders Sandberg, Eric Drexler and Toby Ord Future of Humanity Institute, Oxford University June 8, 2018 Abstract The Fermi paradox is the conflict between an expectation of a high ex ante probability of intelligent life elsewhere in the universe and the apparently lifeless universe we in fact observe. The expectation that the universe should be teeming with intelligent life is linked to models like the Drake equation, which suggest that even if the probability of intelligent life developing at a given site is small, the sheer multitude of possible sites should nonetheless yield a large number of potentially observable civilizations. We show that this conflict arises from the use of Drake-like equations, which implicitly assume certainty regarding highly uncertain parameters. We examine these parameters, incorporating models of chem- ical and genetic transitions on paths to the origin of life, and show that extant scientific knowledge corresponds to uncertainties that span multi- ple orders of magnitude. This makes a stark difference. When the model is recast to represent realistic distributions of uncertainty, we find a sub- stantial ex ante probability of there being no other intelligent life in our observable universe, and thus that there should be little surprise when we fail to detect any signs of it. This result dissolves the Fermi paradox, and in doing so removes any need to invoke speculative mechanisms by which civilizations would inevitably fail to have observable effects upon the universe. 1 Introduction While working at the Los Alamos National Laboratory in 1950, Enrico Fermi famously asked his colleagues: ”Where are they?” [1].
    [Show full text]
  • Prior Indigenous Technological Species
    International Journal of Astrobiology 17 (1): 96–100 (2018) doi:10.1017/S1473550417000143 © Cambridge University Press 2017 Prior indigenous technological species Jason T. Wright1,2,3 1Department of Astronomy & Astrophysics and Center for Exoplanets and Habitable Worlds 525 Davey Laboratory, The Pennsylvania State University, University Park, PA 16802, USA e-mail: [email protected] 2Department of Astronomy Breakthrough Listen Laboratory 501 Campbell Hall #3411, University of California, Berkeley, CA 94720, USA 3PI, NASA Nexus for Exoplanet System Science Abstract: One of the primary open questions of astrobiology is whether there is extant or extinct life elsewhere the solar system. Implicit in much of this work is that we are looking for microbial or, at best, unintelligent life, even though technological artefacts might be much easier to find. Search for Extraterrestrial Intelligence (SETI) work on searches for alien artefacts in the solar system typically presumes that such artefacts would be of extrasolar origin, even though life is known to have existed in the solar system, on Earth, for eons. But if a prior technological, perhaps spacefaring, species ever arose in the solar system, it might have produced artefacts or other technosignatures that have survived to present day, meaning solar system artefact SETI provides a potential path to resolving astrobiology’s question. Here, I discuss the origins and possible locations for technosignatures of such a prior indigenous technological species, which might have arisen on ancient Earth or another body, such as a pre-greenhouse Venus or a wet Mars. In the case of Venus, the arrival of its global greenhouse and potential resurfacing might have erased all evidence of its existence on the Venusian surface.
    [Show full text]
  • BREAKTHROUGH LISTEN Searching for Signatures of Technology
    BREAKTHROUGH LISTEN Searching for Signatures of Technology Howard Isaacson, Andrew Siemion & the Breakthrough Listen Team Overview Search Results Instrumentation Breakthrough Listen (BL) is the most comprehensive At radio frequencies, the capability of the data recording search for signs of extraterrestrial technology ever In the first analysis of BL data, including 30 minute cycles of observations of system directly determines survey speed, and given a undertaken. Using some of the most powerful 692 targets from our stellar sample, we find that none of the observed systems fixed observing time and spectral coverage, they telescopes in the world, combined with an host high-duty-cycle radio transmitters emitting between 1.1 to 1.9 GHz with an determine survey sensitivity as well. Breakthrough Listen unprecedented capability to record, archive and EIRP of 1013 watts, a luminosity readily achievable by our own civilization. This has the ability to write data to disk at the rate of 24 GB analyze the incoming data, Breakthrough Listen is comprehensive search over hundreds of stars represents only a small piece of per second. Using commodity servers and consumer humanity’s best hope of detecting evidence for the ever growing data set being compiled by Breakthrough Listen. class hard drives, the BL backend can record 6 GHz of technological civilizations beyond the Earth. BL his bandwidth at 8 bits for two polarizations. In a typical 6 currently observing a focused target list consisting hour session, the raw data recorded to disk can exceed ~1700 nearby stars and ~150 nearby galaxies. Our 350 TB. Using GPU processors the data volume is observing strategy is expressly designed to to allow Target Selection reduced to 2% of the raw data volume in less than 6 us to to effectively work through the mountains of hours.
    [Show full text]